--- Begin Message ---
- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: stretch-pu: package tigervnc/1.7.0+dfsg-7+deb9u1
- From: Joachim Falk <joachim.falk@gmx.de>
- Date: Sat, 25 Jan 2020 23:57:39 +0100
- Message-id: <157999305951.18495.5903692012886466939.reportbug@xia.jfalk.de>
- Reply-to: Joachim Falk <joachim.falk@gmx.de>
Package: release.debian.org
Severity: normal
Tags: stretch
User: release.debian.org@packages.debian.org
Usertags: pu
Security fixes for CVE-2019-15691, CVE-2019-15692, CVE-2019-15693,
CVE-2019-15694, and CVE-2019-15695 as detailed in bug #947428.
-- System Information:
Debian Release: 9.11
APT prefers oldstable
APT policy: (990, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.19.0-6-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
diff -Nru tigervnc-1.7.0+dfsg/debian/changelog tigervnc-1.7.0+dfsg/debian/changelog
--- tigervnc-1.7.0+dfsg/debian/changelog 2017-04-09 16:38:13.000000000 +0200
+++ tigervnc-1.7.0+dfsg/debian/changelog 2020-01-18 19:30:42.000000000 +0100
@@ -1,3 +1,11 @@
+tigervnc (1.7.0+dfsg-7+deb9u1) stretch; urgency=high
+
+ [ Joachim Falk ]
+ * Fix CVE-2019-15691, CVE-2019-15692, CVE-2019-15693, CVE-2019-15694, and
+ CVE-2019-15695 (Closes: #947428)
+
+ -- Joachim Falk <joachim.falk@gmx.de> Sat, 18 Jan 2020 19:30:42 +0100
+
tigervnc (1.7.0+dfsg-7) unstable; urgency=high
[ Joachim Falk ]
diff -Nru tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15691.patch tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15691.patch
--- tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15691.patch 1970-01-01 01:00:00.000000000 +0100
+++ tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15691.patch 2020-01-18 19:30:42.000000000 +0100
@@ -0,0 +1,116 @@
+From d61a767d6842b530ffb532ddd5a3d233119aad40 Mon Sep 17 00:00:00 2001
+From: Pierre Ossman <ossman@cendio.se>
+Date: Tue, 10 Sep 2019 11:05:48 +0200
+Subject: [PATCH] Make ZlibInStream more robust against failures
+
+Move the checks around to avoid missing cases where we might access
+memory that is no longer valid. Also avoid touching the underlying
+stream implicitly (e.g. via the destructor) as it might also no
+longer be valid.
+
+A malicious server could theoretically use this for remote code
+execution in the client.
+
+Issue found by Pavel Cheremushkin from Kaspersky Lab
+---
+ common/rdr/ZlibInStream.cxx | 13 +++++++------
+ common/rdr/ZlibInStream.h | 2 +-
+ common/rfb/CMsgReader.cxx | 3 ++-
+ common/rfb/SMsgReader.cxx | 3 ++-
+ common/rfb/TightDecoder.cxx | 3 ++-
+ common/rfb/zrleDecode.h | 3 ++-
+ 6 files changed, 16 insertions(+), 11 deletions(-)
+
+Index: pkg-tigervnc/common/rdr/ZlibInStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/ZlibInStream.cxx
++++ pkg-tigervnc/common/rdr/ZlibInStream.cxx
+@@ -52,16 +52,16 @@ int ZlibInStream::pos()
+ return offset + ptr - start;
+ }
+
+-void ZlibInStream::removeUnderlying()
++void ZlibInStream::flushUnderlying()
+ {
+ ptr = end = start;
+- if (!underlying) return;
+
+ while (bytesIn > 0) {
+ decompress(true);
+ end = start; // throw away any data
+ }
+- underlying = 0;
++
++ setUnderlying(NULL, 0);
+ }
+
+ void ZlibInStream::reset()
+@@ -90,7 +90,7 @@ void ZlibInStream::init()
+ void ZlibInStream::deinit()
+ {
+ assert(zs != NULL);
+- removeUnderlying();
++ setUnderlying(NULL, 0);
+ inflateEnd(zs);
+ delete zs;
+ zs = NULL;
+@@ -100,8 +100,6 @@ int ZlibInStream::overrun(int itemSize,
+ {
+ if (itemSize > bufSize)
+ throw Exception("ZlibInStream overrun: max itemSize exceeded");
+- if (!underlying)
+- throw Exception("ZlibInStream overrun: no underlying stream");
+
+ if (end - ptr != 0)
+ memmove(start, ptr, end - ptr);
+@@ -127,6 +125,9 @@ int ZlibInStream::overrun(int itemSize,
+
+ bool ZlibInStream::decompress(bool wait)
+ {
++ if (!underlying)
++ throw Exception("ZlibInStream overrun: no underlying stream");
++
+ zs->next_out = (U8*)end;
+ zs->avail_out = start + bufSize - end;
+
+Index: pkg-tigervnc/common/rdr/ZlibInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/ZlibInStream.h
++++ pkg-tigervnc/common/rdr/ZlibInStream.h
+@@ -38,7 +38,7 @@ namespace rdr {
+ virtual ~ZlibInStream();
+
+ void setUnderlying(InStream* is, int bytesIn);
+- void removeUnderlying();
++ void flushUnderlying();
+ int pos();
+ void reset();
+
+Index: pkg-tigervnc/common/rfb/TightDecoder.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/TightDecoder.cxx
++++ pkg-tigervnc/common/rfb/TightDecoder.cxx
+@@ -340,7 +340,8 @@ void TightDecoder::decodeRect(const Rect
+
+ zis[streamId].readBytes(netbuf, dataSize);
+
+- zis[streamId].removeUnderlying();
++ zis[streamId].flushUnderlying();
++ zis[streamId].setUnderlying(NULL, 0);
+ delete ms;
+
+ bufptr = netbuf;
+Index: pkg-tigervnc/common/rfb/zrleDecode.h
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/zrleDecode.h
++++ pkg-tigervnc/common/rfb/zrleDecode.h
+@@ -177,7 +177,8 @@ void ZRLE_DECODE (const Rect& r, rdr::In
+ }
+ }
+
+- zis->removeUnderlying();
++ zis->flushUnderlying();
++ zis->setUnderlying(NULL, 0);
+ }
+
+ #undef ZRLE_DECODE
diff -Nru tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15692.patch tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15692.patch
--- tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15692.patch 1970-01-01 01:00:00.000000000 +0100
+++ tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15692.patch 2020-01-18 19:30:42.000000000 +0100
@@ -0,0 +1,350 @@
+From 996356b6c65ca165ee1ea46a571c32a1dc3c3821 Mon Sep 17 00:00:00 2001
+From: Pierre Ossman <ossman@cendio.se>
+Date: Tue, 10 Sep 2019 15:21:03 +0200
+Subject: [PATCH] Restrict PixelBuffer dimensions to safe values
+
+We do a lot of calculations based on pixel coordinates and we need
+to make sure they do not overflow. Restrict the maximum dimensions
+we support rather than try to switch over all calculations to use
+64 bit integers.
+
+This prevents attackers from injecting code by specifying a
+huge framebuffer size and relying on the values overflowing to
+access invalid areas of the heap.
+
+This primarily affects the client which gets both the screen
+dimensions and the pixel contents from the remote side. But the
+server might also be affected as a client can adjust the screen
+dimensions, as can applications inside the session.
+
+Issue found by Pavel Cheremushkin from Kaspersky Lab.
+---
+ common/rfb/PixelBuffer.cxx | 22 ++++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+Index: pkg-tigervnc/common/rfb/PixelBuffer.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/PixelBuffer.cxx
++++ pkg-tigervnc/common/rfb/PixelBuffer.cxx
+@@ -31,11 +31,22 @@ using namespace rdr;
+
+ static LogWriter vlog("PixelBuffer");
+
++// We do a lot of byte offset calculations that assume the result fits
++// inside a signed 32 bit integer. Limit the maximum size of pixel
++// buffers so that these calculations never overflow.
++
++const int maxPixelBufferWidth = 16384;
++const int maxPixelBufferHeight = 16384;
++const int maxPixelBufferStride = 16384;
++
+
+ // -=- Generic pixel buffer class
+
+ PixelBuffer::PixelBuffer(const PixelFormat& pf, int w, int h)
+- : format(pf), width_(w), height_(h) {}
++ : format(pf), width_(0), height_(0)
++{
++ setSize(w, h);
++}
+ PixelBuffer::PixelBuffer() : width_(0), height_(0) {}
+
+ PixelBuffer::~PixelBuffer() {}
+@@ -80,6 +91,17 @@ void PixelBuffer::getImage(const PixelFo
+ stride, srcStride);
+ }
+
++void PixelBuffer::setSize(int width, int height)
++{
++ if ((width < 0) || (width > maxPixelBufferWidth))
++ throw rfb::Exception("Invalid PixelBuffer width of %d pixels requested", width);
++ if ((height < 0) || (height > maxPixelBufferHeight))
++ throw rfb::Exception("Invalid PixelBuffer height of %d pixels requested", height);
++
++ width_ = width;
++ height_ = height;
++}
++
+ // -=- Modifiable generic pixel buffer class
+
+ ModifiablePixelBuffer::ModifiablePixelBuffer(const PixelFormat& pf,
+@@ -106,7 +128,7 @@ void ModifiablePixelBuffer::fillRect(con
+ drect = r;
+ if (!drect.enclosed_by(getRect())) {
+ vlog.error("Destination rect %dx%d at %d,%d exceeds framebuffer %dx%d",
+- drect.width(), drect.height(), drect.tl.x, drect.tl.y, width_, height_);
++ drect.width(), drect.height(), drect.tl.x, drect.tl.y, width(), height());
+ drect = drect.intersect(getRect());
+ }
+
+@@ -264,7 +286,7 @@ void ModifiablePixelBuffer::copyRect(con
+ drect = rect;
+ if (!drect.enclosed_by(getRect())) {
+ vlog.error("Destination rect %dx%d at %d,%d exceeds framebuffer %dx%d",
+- drect.width(), drect.height(), drect.tl.x, drect.tl.y, width_, height_);
++ drect.width(), drect.height(), drect.tl.x, drect.tl.y, width(), height());
+ drect = drect.intersect(getRect());
+ }
+
+@@ -274,7 +296,7 @@ void ModifiablePixelBuffer::copyRect(con
+ srect = drect.translate(move_by_delta.negate());
+ if (!srect.enclosed_by(getRect())) {
+ vlog.error("Source rect %dx%d at %d,%d exceeds framebuffer %dx%d",
+- srect.width(), srect.height(), srect.tl.x, srect.tl.y, width_, height_);
++ srect.width(), srect.height(), srect.tl.x, srect.tl.y, width(), height());
+ srect = srect.intersect(getRect());
+ // Need to readjust the destination now that the area has changed
+ drect = srect.translate(move_by_delta);
+@@ -369,19 +391,41 @@ const rdr::U8* FullFramePixelBuffer::get
+ return &data[(r.tl.x + (r.tl.y * stride)) * format.bpp/8];
+ }
+
++void FullFramePixelBuffer::setBuffer(int width, int height,
++ rdr::U8* data_, int stride_)
++{
++ if ((width < 0) || (width > maxPixelBufferWidth))
++ throw rfb::Exception("Invalid PixelBuffer width of %d pixels requested", width);
++ if ((height < 0) || (height > maxPixelBufferHeight))
++ throw rfb::Exception("Invalid PixelBuffer height of %d pixels requested", height);
++ if ((stride_ < 0) || (stride_ > maxPixelBufferStride) || (stride_ < width))
++ throw rfb::Exception("Invalid PixelBuffer stride of %d pixels requested", stride_);
++ if ((width != 0) && (height != 0) && (data_ == NULL))
++ throw rfb::Exception("PixelBuffer requested without a valid memory area");
++
++ ModifiablePixelBuffer::setSize(width, height);
++ stride = stride_;
++ data = data_;
++}
++
++void FullFramePixelBuffer::setSize(int w, int h)
++{
++ // setBuffer() should be used
++ throw Exception("Invalid call to FullFramePixelBuffer::setSize()");
++}
++
+ // -=- Managed pixel buffer class
+ // Automatically allocates enough space for the specified format & area
+
+ ManagedPixelBuffer::ManagedPixelBuffer()
+ : datasize(0)
+ {
+- checkDataSize();
+ };
+
+ ManagedPixelBuffer::ManagedPixelBuffer(const PixelFormat& pf, int w, int h)
+- : FullFramePixelBuffer(pf, w, h, NULL, w), datasize(0)
++ : FullFramePixelBuffer(pf, 0, 0, NULL, 0), datasize(0)
+ {
+- checkDataSize();
++ setSize(w, h);
+ };
+
+ ManagedPixelBuffer::~ManagedPixelBuffer() {
+@@ -391,22 +435,18 @@ ManagedPixelBuffer::~ManagedPixelBuffer(
+
+ void
+ ManagedPixelBuffer::setPF(const PixelFormat &pf) {
+- format = pf; checkDataSize();
++ format = pf; setSize(width(), height());
+ };
+ void
+ ManagedPixelBuffer::setSize(int w, int h) {
+- width_ = w; height_ = h; stride = w; checkDataSize();
+-};
++ unsigned long new_datasize = w * h * (format.bpp/8);
+
+-
+-inline void
+-ManagedPixelBuffer::checkDataSize() {
+- unsigned long new_datasize = width_ * height_ * (format.bpp/8);
+ if (datasize < new_datasize) {
+- vlog.debug("reallocating managed buffer (%dx%d)", width_, height_);
++ vlog.debug("reallocating managed buffer (%dx%d)", w, h);
+ if (data) {
+ delete [] data;
+- datasize = 0; data = 0;
++ data = NULL;
++ datasize = 0;
+ }
+ if (new_datasize) {
+ data = new U8[new_datasize];
+@@ -415,4 +455,6 @@ ManagedPixelBuffer::checkDataSize() {
+ datasize = new_datasize;
+ }
+ }
++
++ setBuffer(w, h, data, w);
+ };
+Index: pkg-tigervnc/common/rfb/Cursor.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/Cursor.cxx
++++ pkg-tigervnc/common/rfb/Cursor.cxx
+@@ -211,8 +211,7 @@ void RenderedCursor::update(PixelBuffer*
+ throw Exception("RenderedCursor: Trying to render cursor on incompatible frame buffer");
+
+ format = framebuffer->getPF();
+- width_ = framebuffer->width();
+- height_ = framebuffer->height();
++ setSize(framebuffer->width(), framebuffer->height());
+
+ rawOffset = pos.subtract(cursor->hotspot);
+ clippedRect = cursor->getRect(rawOffset).intersect(framebuffer->getRect());
+Index: pkg-tigervnc/common/rfb/PixelBuffer.h
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/PixelBuffer.h
++++ pkg-tigervnc/common/rfb/PixelBuffer.h
+@@ -89,7 +89,10 @@ namespace rfb {
+
+ protected:
+ PixelBuffer();
++ virtual void setSize(int width, int height);
++
+ PixelFormat format;
++ private:
+ int width_, height_;
+ };
+
+@@ -163,7 +166,12 @@ namespace rfb {
+
+ protected:
+ FullFramePixelBuffer();
++ virtual void setBuffer(int width, int height, rdr::U8* data, int stride);
++
++ private:
++ virtual void setSize(int w, int h);
+
++ protected:
+ rdr::U8* data;
+ int stride;
+ };
+@@ -182,11 +190,10 @@ namespace rfb {
+ virtual void setSize(int w, int h);
+
+ // Return the total number of bytes of pixel data in the buffer
+- int dataLen() const { return width_ * height_ * (format.bpp/8); }
++ int dataLen() const { return width() * height() * (format.bpp/8); }
+
+ protected:
+ unsigned long datasize;
+- void checkDataSize();
+ };
+
+ };
+Index: pkg-tigervnc/common/rfb/EncodeManager.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/EncodeManager.cxx
++++ pkg-tigervnc/common/rfb/EncodeManager.cxx
+@@ -891,11 +891,8 @@ void EncodeManager::OffsetPixelBuffer::u
+ int stride_)
+ {
+ format = pf;
+- width_ = width;
+- height_ = height;
+ // Forced cast. We never write anything though, so it should be safe.
+- data = (rdr::U8*)data_;
+- stride = stride_;
++ setBuffer(width, height, (rdr::U8*)data_, stride_);
+ }
+
+ // Preprocessor generated, optimised methods
+Index: pkg-tigervnc/unix/x0vncserver/XPixelBuffer.cxx
+===================================================================
+--- pkg-tigervnc.orig/unix/x0vncserver/XPixelBuffer.cxx
++++ pkg-tigervnc/unix/x0vncserver/XPixelBuffer.cxx
+@@ -50,13 +50,10 @@ XPixelBuffer::XPixelBuffer(Display *dpy,
+ ffs(m_image->xim->blue_mask) - 1);
+
+ // Set up the remaining data of the parent class.
+- width_ = rect.width();
+- height_ = rect.height();
+- data = (rdr::U8 *)m_image->xim->data;
+-
++ setBuffer(rect.width(), rect.height(), (rdr::U8 *)m_image->xim->data,
+ // Calculate the distance in pixels between two subsequent scan
+ // lines of the framebuffer. This may differ from image width.
+- stride = m_image->xim->bytes_per_line * 8 / m_image->xim->bits_per_pixel;
++ m_image->xim->bytes_per_line * 8 / m_image->xim->bits_per_pixel);
+
+ // Get initial screen image from the X display.
+ m_image->get(DefaultRootWindow(m_dpy), m_offsetLeft, m_offsetTop);
+Index: pkg-tigervnc/unix/xserver/hw/vnc/XserverDesktop.cc
+===================================================================
+--- pkg-tigervnc.orig/unix/xserver/hw/vnc/XserverDesktop.cc
++++ pkg-tigervnc/unix/xserver/hw/vnc/XserverDesktop.cc
+@@ -123,7 +123,7 @@ XserverDesktop::XserverDesktop(int scree
+ : screenIndex(screenIndex_),
+ server(0), httpServer(0),
+ listeners(listeners_), httpListeners(httpListeners_),
+- deferredUpdateTimerSet(false), directFbptr(true),
++ deferredUpdateTimerSet(false), shadowFramebuffer(NULL),
+ queryConnectId(0)
+ {
+ format = pf;
+@@ -161,13 +161,13 @@ XserverDesktop::~XserverDesktop()
+ }
+ while (!httpListeners.empty()) {
+ #if XORG >= 119
+- RemoveNotifyFd(listeners.back()->getFd());
++ RemoveNotifyFd(httpListeners.back()->getFd());
+ #endif
+ delete httpListeners.back();
+ httpListeners.pop_back();
+ }
+- if (!directFbptr)
+- delete [] data;
++ if (shadowFramebuffer)
++ delete [] shadowFramebuffer;
+ delete httpServer;
+ delete server;
+ }
+@@ -186,22 +186,18 @@ void XserverDesktop::setFramebuffer(int
+ {
+ ScreenSet layout;
+
+- width_ = w;
+- height_ = h;
+-
+- if (!directFbptr) {
+- delete [] data;
+- directFbptr = true;
++ if (shadowFramebuffer) {
++ delete [] shadowFramebuffer;
++ shadowFramebuffer = NULL;
+ }
+
+ if (!fbptr) {
+- fbptr = new rdr::U8[w * h * (format.bpp/8)];
++ shadowFramebuffer = new rdr::U8[w * h * (format.bpp/8)];
++ fbptr = shadowFramebuffer;
+ stride_ = w;
+- directFbptr = false;
+ }
+
+- data = (rdr::U8*)fbptr;
+- stride = stride_;
++ setBuffer(w, h, (rdr::U8*)fbptr, stride_);
+
+ layout = computeScreenLayout();
+
+@@ -1013,7 +1009,7 @@ unsigned int XserverDesktop::setScreenLa
+
+ void XserverDesktop::grabRegion(const rfb::Region& region)
+ {
+- if (directFbptr)
++ if (shadowFramebuffer == NULL)
+ return;
+
+ std::vector<rfb::Rect> rects;
+Index: pkg-tigervnc/unix/xserver/hw/vnc/XserverDesktop.h
+===================================================================
+--- pkg-tigervnc.orig/unix/xserver/hw/vnc/XserverDesktop.h
++++ pkg-tigervnc/unix/xserver/hw/vnc/XserverDesktop.h
+@@ -123,7 +123,7 @@ private:
+ std::list<network::TcpListener*> listeners;
+ std::list<network::TcpListener*> httpListeners;
+ bool deferredUpdateTimerSet;
+- bool directFbptr;
++ rdr::U8* shadowFramebuffer;
+ struct timeval dixTimeout;
+
+ uint32_t queryConnectId;
diff -Nru tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15693.patch tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15693.patch
--- tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15693.patch 1970-01-01 01:00:00.000000000 +0100
+++ tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15693.patch 2020-01-18 19:30:42.000000000 +0100
@@ -0,0 +1,75 @@
+From b4ada8d0c6dac98c8b91fc64d112569a8ae5fb95 Mon Sep 17 00:00:00 2001
+From: Pierre Ossman <ossman@cendio.se>
+Date: Tue, 10 Sep 2019 15:36:42 +0200
+Subject: [PATCH] Handle empty Tight gradient rects
+
+We always assumed there would be one pixel per row so a rect with
+a zero width would result in us writing to unknown memory.
+
+This could theoretically be used by a malicious server to inject
+code in to the viewer process.
+
+Issue found by Pavel Cheremushkin from Kaspersky Lab.
+---
+ common/rfb/tightDecode.h | 37 +++++++++++++++++++++----------------
+ 1 file changed, 21 insertions(+), 16 deletions(-)
+
+Index: pkg-tigervnc/common/rfb/tightDecode.h
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/tightDecode.h
++++ pkg-tigervnc/common/rfb/tightDecode.h
+@@ -56,15 +56,17 @@ TightDecoder::FilterGradient24(const rdr
+ int rectWidth = r.width();
+
+ for (y = 0; y < rectHeight; y++) {
+- /* First pixel in a row */
+- for (c = 0; c < 3; c++) {
+- pix[c] = inbuf[y*rectWidth*3+c] + prevRow[c];
+- thisRow[c] = pix[c];
+- }
+- pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1);
++ for (x = 0; x < rectWidth; x++) {
++ /* First pixel in a row */
++ if (x == 0) {
++ for (c = 0; c < 3; c++) {
++ pix[c] = inbuf[y*rectWidth*3+c] + prevRow[c];
++ thisRow[c] = pix[c];
++ }
++ pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1);
++ continue;
++ }
+
+- /* Remaining pixels of a row */
+- for (x = 1; x < rectWidth; x++) {
+ for (c = 0; c < 3; c++) {
+ est[c] = prevRow[x*3+c] + pix[c] - prevRow[(x-1)*3+c];
+ if (est[c] > 0xff) {
+@@ -103,17 +105,20 @@ void TightDecoder::FilterGradient(const
+ int rectWidth = r.width();
+
+ for (y = 0; y < rectHeight; y++) {
+- /* First pixel in a row */
+- pf.rgbFromBuffer(pix, &inbuf[y*rectWidth], 1);
+- for (c = 0; c < 3; c++)
+- pix[c] += prevRow[c];
++ for (x = 0; x < rectWidth; x++) {
++ /* First pixel in a row */
++ if (x == 0) {
++ pf.rgbFromBuffer(pix, &inbuf[y*rectWidth], 1);
++ for (c = 0; c < 3; c++)
++ pix[c] += prevRow[c];
+
+- memcpy(thisRow, pix, sizeof(pix));
++ memcpy(thisRow, pix, sizeof(pix));
+
+- pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1);
++ pf.bufferFromRGB((rdr::U8*)&outbuf[y*stride], pix, 1);
++
++ continue;
++ }
+
+- /* Remaining pixels of a row */
+- for (x = 1; x < rectWidth; x++) {
+ for (c = 0; c < 3; c++) {
+ est[c] = prevRow[x*3+c] + pix[c] - prevRow[(x-1)*3+c];
+ if (est[c] > 255) {
diff -Nru tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15694.patch tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15694.patch
--- tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15694.patch 1970-01-01 01:00:00.000000000 +0100
+++ tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15694.patch 2020-01-18 19:30:42.000000000 +0100
@@ -0,0 +1,1369 @@
+From 0943c006c7d900dfc0281639e992791d6c567438 Mon Sep 17 00:00:00 2001
+From: Pierre Ossman <ossman@cendio.se>
+Date: Mon, 23 Sep 2019 11:00:17 +0200
+Subject: [PATCH] Use size_t for lengths in stream objects
+
+Provides safety against them accidentally becoming negative because
+of bugs in the calculations.
+
+Also does the same to CharArray and friends as they were strongly
+connection to the stream objects.
+---
+ common/rdr/FdInStream.cxx | 20 ++++++++++----------
+ common/rdr/FdInStream.h | 17 +++++++++--------
+ common/rdr/FdOutStream.cxx | 20 ++++++++++----------
+ common/rdr/FdOutStream.h | 12 ++++++------
+ common/rdr/FileInStream.cxx | 8 ++++----
+ common/rdr/FileInStream.h | 4 ++--
+ common/rdr/HexInStream.cxx | 20 ++++++++++----------
+ common/rdr/HexInStream.h | 12 ++++++------
+ common/rdr/HexOutStream.cxx | 20 ++++++++++----------
+ common/rdr/HexOutStream.h | 12 ++++++------
+ common/rdr/InStream.h | 16 ++++++++--------
+ common/rdr/MemInStream.h | 8 ++++----
+ common/rdr/MemOutStream.h | 12 ++++++------
+ common/rdr/OutStream.h | 20 ++++++++++----------
+ common/rdr/RandomStream.cxx | 14 +++++++-------
+ common/rdr/RandomStream.h | 6 +++---
+ common/rdr/TLSInStream.cxx | 10 +++++-----
+ common/rdr/TLSInStream.h | 10 +++++-----
+ common/rdr/TLSOutStream.cxx | 10 +++++-----
+ common/rdr/TLSOutStream.h | 10 +++++-----
+ common/rdr/ZlibInStream.cxx | 16 ++++++++--------
+ common/rdr/ZlibInStream.h | 14 +++++++-------
+ common/rdr/ZlibOutStream.cxx | 10 +++++-----
+ common/rdr/ZlibOutStream.h | 10 +++++-----
+ common/rfb/Configuration.cxx | 6 +++---
+ common/rfb/Configuration.h | 13 +++++++------
+ common/rfb/Password.cxx | 6 +++---
+ common/rfb/Password.h | 6 +++---
+ common/rfb/util.h | 2 +-
+ 29 files changed, 184 insertions(+), 182 deletions(-)
+
+Index: pkg-tigervnc/common/rdr/FdInStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/FdInStream.cxx
++++ pkg-tigervnc/common/rdr/FdInStream.cxx
+@@ -56,7 +56,7 @@ using namespace rdr;
+ enum { DEFAULT_BUF_SIZE = 8192,
+ MIN_BULK_SIZE = 1024 };
+
+-FdInStream::FdInStream(int fd_, int timeoutms_, int bufSize_,
++FdInStream::FdInStream(int fd_, int timeoutms_, size_t bufSize_,
+ bool closeWhenDone_)
+ : fd(fd_), closeWhenDone(closeWhenDone_),
+ timeoutms(timeoutms_), blockCallback(0),
+@@ -67,7 +67,7 @@ FdInStream::FdInStream(int fd_, int time
+ }
+
+ FdInStream::FdInStream(int fd_, FdInStreamBlockCallback* blockCallback_,
+- int bufSize_)
++ size_t bufSize_)
+ : fd(fd_), timeoutms(0), blockCallback(blockCallback_),
+ timing(false), timeWaitedIn100us(5), timedKbits(0),
+ bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
+@@ -92,12 +92,12 @@ void FdInStream::setBlockCallback(FdInSt
+ timeoutms = 0;
+ }
+
+-int FdInStream::pos()
++size_t FdInStream::pos()
+ {
+ return offset + ptr - start;
+ }
+
+-void FdInStream::readBytes(void* data, int length)
++void FdInStream::readBytes(void* data, size_t length)
+ {
+ if (length < MIN_BULK_SIZE) {
+ InStream::readBytes(data, length);
+@@ -106,7 +106,7 @@ void FdInStream::readBytes(void* data, i
+
+ U8* dataPtr = (U8*)data;
+
+- int n = end - ptr;
++ size_t n = end - ptr;
+ if (n > length) n = length;
+
+ memcpy(dataPtr, ptr, n);
+@@ -123,7 +123,7 @@ void FdInStream::readBytes(void* data, i
+ }
+
+
+-int FdInStream::overrun(int itemSize, int nItems, bool wait)
++size_t FdInStream::overrun(size_t itemSize, size_t nItems, bool wait)
+ {
+ if (itemSize > bufSize)
+ throw Exception("FdInStream overrun: max itemSize exceeded");
+@@ -135,7 +135,7 @@ int FdInStream::overrun(int itemSize, in
+ end -= ptr - start;
+ ptr = start;
+
+- int bytes_to_read;
++ size_t bytes_to_read;
+ while (end < start + itemSize) {
+ bytes_to_read = start + bufSize - end;
+ if (!timing) {
+@@ -147,12 +147,12 @@ int FdInStream::overrun(int itemSize, in
+ // bytes is ineffecient.
+ bytes_to_read = vncmin(bytes_to_read, vncmax(itemSize*nItems, 8));
+ }
+- int n = readWithTimeoutOrCallback((U8*)end, bytes_to_read, wait);
++ size_t n = readWithTimeoutOrCallback((U8*)end, bytes_to_read, wait);
+ if (n == 0) return 0;
+ end += n;
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+@@ -171,7 +171,7 @@ int FdInStream::overrun(int itemSize, in
+ // returning EINTR.
+ //
+
+-int FdInStream::readWithTimeoutOrCallback(void* buf, int len, bool wait)
++size_t FdInStream::readWithTimeoutOrCallback(void* buf, size_t len, bool wait)
+ {
+ struct timeval before, after;
+ if (timing)
+Index: pkg-tigervnc/common/rdr/FdInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/FdInStream.h
++++ pkg-tigervnc/common/rdr/FdInStream.h
+@@ -36,16 +36,17 @@ namespace rdr {
+
+ public:
+
+- FdInStream(int fd, int timeoutms=-1, int bufSize=0,
++ FdInStream(int fd, int timeoutms=-1, size_t bufSize=0,
+ bool closeWhenDone_=false);
+- FdInStream(int fd, FdInStreamBlockCallback* blockCallback, int bufSize=0);
++ FdInStream(int fd, FdInStreamBlockCallback* blockCallback,
++ size_t bufSize=0);
+ virtual ~FdInStream();
+
+ void setTimeout(int timeoutms);
+ void setBlockCallback(FdInStreamBlockCallback* blockCallback);
+ int getFd() { return fd; }
+- int pos();
+- void readBytes(void* data, int length);
++ size_t pos();
++ void readBytes(void* data, size_t length);
+
+ void startTiming();
+ void stopTiming();
+@@ -53,10 +54,10 @@ namespace rdr {
+ unsigned int timeWaited() { return timeWaitedIn100us; }
+
+ protected:
+- int overrun(int itemSize, int nItems, bool wait);
++ size_t overrun(size_t itemSize, size_t nItems, bool wait);
+
+ private:
+- int readWithTimeoutOrCallback(void* buf, int len, bool wait=true);
++ size_t readWithTimeoutOrCallback(void* buf, size_t len, bool wait=true);
+
+ int fd;
+ bool closeWhenDone;
+@@ -67,8 +68,8 @@ namespace rdr {
+ unsigned int timeWaitedIn100us;
+ unsigned int timedKbits;
+
+- int bufSize;
+- int offset;
++ size_t bufSize;
++ size_t offset;
+ U8* start;
+ };
+
+Index: pkg-tigervnc/common/rdr/FdOutStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/FdOutStream.cxx
++++ pkg-tigervnc/common/rdr/FdOutStream.cxx
+@@ -50,7 +50,7 @@ using namespace rdr;
+
+ enum { DEFAULT_BUF_SIZE = 16384 };
+
+-FdOutStream::FdOutStream(int fd_, bool blocking_, int timeoutms_, int bufSize_)
++FdOutStream::FdOutStream(int fd_, bool blocking_, int timeoutms_, size_t bufSize_)
+ : fd(fd_), blocking(blocking_), timeoutms(timeoutms_),
+ bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
+ {
+@@ -78,7 +78,7 @@ void FdOutStream::setBlocking(bool block
+ blocking = blocking_;
+ }
+
+-int FdOutStream::length()
++size_t FdOutStream::length()
+ {
+ return offset + ptr - sentUpTo;
+ }
+@@ -96,9 +96,9 @@ unsigned FdOutStream::getIdleTime()
+ void FdOutStream::flush()
+ {
+ while (sentUpTo < ptr) {
+- int n = writeWithTimeout((const void*) sentUpTo,
+- ptr - sentUpTo,
+- blocking? timeoutms : 0);
++ size_t n = writeWithTimeout((const void*) sentUpTo,
++ ptr - sentUpTo,
++ blocking? timeoutms : 0);
+
+ // Timeout?
+ if ((n == 0) && blocking)
+@@ -114,7 +114,7 @@ void FdOutStream::flush()
+ }
+
+
+-int FdOutStream::overrun(int itemSize, int nItems)
++size_t FdOutStream::overrun(size_t itemSize, size_t nItems)
+ {
+ if (itemSize > bufSize)
+ throw Exception("FdOutStream overrun: max itemSize exceeded");
+@@ -123,10 +123,10 @@ int FdOutStream::overrun(int itemSize, i
+ flush();
+
+ // Still not enough space?
+- if (itemSize > end - ptr) {
++ if (itemSize > (size_t)(end - ptr)) {
+ // Can we shuffle things around?
+ // (don't do this if it gains us less than 25%)
+- if ((sentUpTo - start > bufSize / 4) &&
++ if (((size_t)(sentUpTo - start) > bufSize / 4) &&
+ (itemSize < bufSize - (ptr - sentUpTo))) {
+ memmove(start, sentUpTo, ptr - sentUpTo);
+ ptr = start + (ptr - sentUpTo);
+@@ -144,7 +144,7 @@ int FdOutStream::overrun(int itemSize, i
+ }
+
+ // Can we fit all the items asked for?
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+@@ -160,7 +160,7 @@ int FdOutStream::overrun(int itemSize, i
+ // select() and write() returning EINTR.
+ //
+
+-int FdOutStream::writeWithTimeout(const void* data, int length, int timeoutms)
++size_t FdOutStream::writeWithTimeout(const void* data, size_t length, int timeoutms)
+ {
+ int n;
+
+Index: pkg-tigervnc/common/rdr/FdOutStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/FdOutStream.h
++++ pkg-tigervnc/common/rdr/FdOutStream.h
+@@ -34,7 +34,7 @@ namespace rdr {
+
+ public:
+
+- FdOutStream(int fd, bool blocking=true, int timeoutms=-1, int bufSize=0);
++ FdOutStream(int fd, bool blocking=true, int timeoutms=-1, size_t bufSize=0);
+ virtual ~FdOutStream();
+
+ void setTimeout(int timeoutms);
+@@ -42,20 +42,20 @@ namespace rdr {
+ int getFd() { return fd; }
+
+ void flush();
+- int length();
++ size_t length();
+
+ int bufferUsage();
+
+ unsigned getIdleTime();
+
+ private:
+- int overrun(int itemSize, int nItems);
+- int writeWithTimeout(const void* data, int length, int timeoutms);
++ size_t overrun(size_t itemSize, size_t nItems);
++ size_t writeWithTimeout(const void* data, size_t length, int timeoutms);
+ int fd;
+ bool blocking;
+ int timeoutms;
+- int bufSize;
+- int offset;
++ size_t bufSize;
++ size_t offset;
+ U8* start;
+ U8* sentUpTo;
+ struct timeval lastWrite;
+Index: pkg-tigervnc/common/rdr/FileInStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/FileInStream.cxx
++++ pkg-tigervnc/common/rdr/FileInStream.cxx
+@@ -48,7 +48,7 @@ void FileInStream::reset(void) {
+ ptr = end = b;
+ }
+
+-int FileInStream::pos()
++size_t FileInStream::pos()
+ {
+ if (!file)
+ throw Exception("File is not open");
+@@ -56,9 +56,9 @@ int FileInStream::pos()
+ return ftell(file) + ptr - b;
+ }
+
+-int FileInStream::overrun(int itemSize, int nItems, bool wait)
++size_t FileInStream::overrun(size_t itemSize, size_t nItems, bool wait)
+ {
+- if (itemSize > (int)sizeof(b))
++ if (itemSize > sizeof(b))
+ throw Exception("FileInStream overrun: max itemSize exceeded");
+
+ if (end - ptr != 0)
+@@ -80,7 +80,7 @@ int FileInStream::overrun(int itemSize,
+ end += b + sizeof(b) - end;
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+Index: pkg-tigervnc/common/rdr/FileInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/FileInStream.h
++++ pkg-tigervnc/common/rdr/FileInStream.h
+@@ -35,10 +35,10 @@ namespace rdr {
+
+ void reset(void);
+
+- int pos();
++ size_t pos();
+
+ protected:
+- int overrun(int itemSize, int nItems, bool wait = true);
++ size_t overrun(size_t itemSize, size_t nItems, bool wait = true);
+
+ private:
+ U8 b[131072];
+Index: pkg-tigervnc/common/rdr/HexInStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/HexInStream.cxx
++++ pkg-tigervnc/common/rdr/HexInStream.cxx
+@@ -28,7 +28,7 @@ const int DEFAULT_BUF_LEN = 16384;
+
+ static inline int min(int a, int b) {return a<b ? a : b;}
+
+-HexInStream::HexInStream(InStream& is, int bufSize_)
++HexInStream::HexInStream(InStream& is, size_t bufSize_)
+ : bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_LEN), offset(0), in_stream(is)
+ {
+ ptr = end = start = new U8[bufSize];
+@@ -50,8 +50,8 @@ bool HexInStream::readHexAndShift(char c
+ return true;
+ }
+
+-bool HexInStream::hexStrToBin(const char* s, char** data, int* length) {
+- int l=strlen(s);
++bool HexInStream::hexStrToBin(const char* s, char** data, size_t* length) {
++ size_t l=strlen(s);
+ if ((l % 2) == 0) {
+ delete [] *data;
+ *data = 0; *length = 0;
+@@ -59,7 +59,7 @@ bool HexInStream::hexStrToBin(const char
+ return true;
+ *data = new char[l/2];
+ *length = l/2;
+- for(int i=0;i<l;i+=2) {
++ for(size_t i=0;i<l;i+=2) {
+ int byte = 0;
+ if (!readHexAndShift(s[i], &byte) ||
+ !readHexAndShift(s[i+1], &byte))
+@@ -76,11 +76,11 @@ decodeError:
+ }
+
+
+-int HexInStream::pos() {
++size_t HexInStream::pos() {
+ return offset + ptr - start;
+ }
+
+-int HexInStream::overrun(int itemSize, int nItems, bool wait) {
++size_t HexInStream::overrun(size_t itemSize, size_t nItems, bool wait) {
+ if (itemSize > bufSize)
+ throw Exception("HexInStream overrun: max itemSize exceeded");
+
+@@ -92,14 +92,14 @@ int HexInStream::overrun(int itemSize, i
+ ptr = start;
+
+ while (end < ptr + itemSize) {
+- int n = in_stream.check(2, 1, wait);
++ size_t n = in_stream.check(2, 1, wait);
+ if (n == 0) return 0;
+ const U8* iptr = in_stream.getptr();
+ const U8* eptr = in_stream.getend();
+- int length = min((eptr - iptr)/2, start + bufSize - end);
++ size_t length = min((eptr - iptr)/2, start + bufSize - end);
+
+ U8* optr = (U8*) end;
+- for (int i=0; i<length; i++) {
++ for (size_t i=0; i<length; i++) {
+ int v = 0;
+ readHexAndShift(iptr[i*2], &v);
+ readHexAndShift(iptr[i*2+1], &v);
+@@ -110,7 +110,7 @@ int HexInStream::overrun(int itemSize, i
+ end += length;
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+Index: pkg-tigervnc/common/rdr/HexInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/HexInStream.h
++++ pkg-tigervnc/common/rdr/HexInStream.h
+@@ -26,21 +26,21 @@ namespace rdr {
+ class HexInStream : public InStream {
+ public:
+
+- HexInStream(InStream& is, int bufSize=0);
++ HexInStream(InStream& is, size_t bufSize=0);
+ virtual ~HexInStream();
+
+- int pos();
++ size_t pos();
+
+ static bool readHexAndShift(char c, int* v);
+- static bool hexStrToBin(const char* s, char** data, int* length);
++ static bool hexStrToBin(const char* s, char** data, size_t* length);
+
+ protected:
+- int overrun(int itemSize, int nItems, bool wait);
++ size_t overrun(size_t itemSize, size_t nItems, bool wait);
+
+ private:
+- int bufSize;
++ size_t bufSize;
+ U8* start;
+- int offset;
++ size_t offset;
+
+ InStream& in_stream;
+ };
+Index: pkg-tigervnc/common/rdr/HexOutStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/HexOutStream.cxx
++++ pkg-tigervnc/common/rdr/HexOutStream.cxx
+@@ -23,9 +23,9 @@ using namespace rdr;
+
+ const int DEFAULT_BUF_LEN = 16384;
+
+-static inline int min(int a, int b) {return a<b ? a : b;}
++static inline size_t min(size_t a, size_t b) {return a<b ? a : b;}
+
+-HexOutStream::HexOutStream(OutStream& os, int buflen)
++HexOutStream::HexOutStream(OutStream& os, size_t buflen)
+ : out_stream(os), offset(0), bufSize(buflen ? buflen : DEFAULT_BUF_LEN)
+ {
+ if (bufSize % 2)
+@@ -48,9 +48,9 @@ char HexOutStream::intToHex(int i) {
+ throw rdr::Exception("intToHex failed");
+ }
+
+-char* HexOutStream::binToHexStr(const char* data, int length) {
++char* HexOutStream::binToHexStr(const char* data, size_t length) {
+ char* buffer = new char[length*2+1];
+- for (int i=0; i<length; i++) {
++ for (size_t i=0; i<length; i++) {
+ buffer[i*2] = intToHex((data[i] >> 4) & 15);
+ buffer[i*2+1] = intToHex((data[i] & 15));
+ if (!buffer[i*2] || !buffer[i*2+1]) {
+@@ -70,9 +70,9 @@ HexOutStream::writeBuffer() {
+ out_stream.check(2);
+ U8* optr = out_stream.getptr();
+ U8* oend = out_stream.getend();
+- int length = min(ptr-pos, (oend-optr)/2);
++ size_t length = min(ptr-pos, (oend-optr)/2);
+
+- for (int i=0; i<length; i++) {
++ for (size_t i=0; i<length; i++) {
+ optr[i*2] = intToHex((pos[i] >> 4) & 0xf);
+ optr[i*2+1] = intToHex(pos[i] & 0xf);
+ }
+@@ -84,7 +84,7 @@ HexOutStream::writeBuffer() {
+ ptr = start;
+ }
+
+-int HexOutStream::length()
++size_t HexOutStream::length()
+ {
+ return offset + ptr - start;
+ }
+@@ -95,14 +95,14 @@ HexOutStream::flush() {
+ out_stream.flush();
+ }
+
+-int
+-HexOutStream::overrun(int itemSize, int nItems) {
++size_t
++HexOutStream::overrun(size_t itemSize, size_t nItems) {
+ if (itemSize > bufSize)
+ throw Exception("HexOutStream overrun: max itemSize exceeded");
+
+ writeBuffer();
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+Index: pkg-tigervnc/common/rdr/HexOutStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/HexOutStream.h
++++ pkg-tigervnc/common/rdr/HexOutStream.h
+@@ -26,24 +26,24 @@ namespace rdr {
+ class HexOutStream : public OutStream {
+ public:
+
+- HexOutStream(OutStream& os, int buflen=0);
++ HexOutStream(OutStream& os, size_t buflen=0);
+ virtual ~HexOutStream();
+
+ void flush();
+- int length();
++ size_t length();
+
+ static char intToHex(int i);
+- static char* binToHexStr(const char* data, int length);
++ static char* binToHexStr(const char* data, size_t length);
+
+ private:
+ void writeBuffer();
+- int overrun(int itemSize, int nItems);
++ size_t overrun(size_t itemSize, size_t nItems);
+
+ OutStream& out_stream;
+
+ U8* start;
+- int offset;
+- int bufSize;
++ size_t offset;
++ size_t bufSize;
+ };
+
+ }
+Index: pkg-tigervnc/common/rdr/InStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/InStream.h
++++ pkg-tigervnc/common/rdr/InStream.h
+@@ -41,7 +41,7 @@ namespace rdr {
+ // for the bytes, zero is returned if the bytes are not immediately
+ // available.
+
+- inline int check(int itemSize, int nItems=1, bool wait=true)
++ inline size_t check(size_t itemSize, size_t nItems=1, bool wait=true)
+ {
+ if (ptr + itemSize * nItems > end) {
+ if (ptr + itemSize > end)
+@@ -56,7 +56,7 @@ namespace rdr {
+ // be read without blocking. It returns true if this is the case, false
+ // otherwise. The length must be "small" (less than the buffer size).
+
+- inline bool checkNoWait(int length) { return check(length, 1, false)!=0; }
++ inline bool checkNoWait(size_t length) { return check(length, 1, false)!=0; }
+
+ // readU/SN() methods read unsigned and signed N-bit integers.
+
+@@ -82,9 +82,9 @@ namespace rdr {
+
+ static U32 maxStringLength;
+
+- inline void skip(int bytes) {
++ inline void skip(size_t bytes) {
+ while (bytes > 0) {
+- int n = check(1, bytes);
++ size_t n = check(1, bytes);
+ ptr += n;
+ bytes -= n;
+ }
+@@ -92,11 +92,11 @@ namespace rdr {
+
+ // readBytes() reads an exact number of bytes.
+
+- void readBytes(void* data, int length) {
++ void readBytes(void* data, size_t length) {
+ U8* dataPtr = (U8*)data;
+ U8* dataEnd = dataPtr + length;
+ while (dataPtr < dataEnd) {
+- int n = check(1, dataEnd - dataPtr);
++ size_t n = check(1, dataEnd - dataPtr);
+ memcpy(dataPtr, ptr, n);
+ ptr += n;
+ dataPtr += n;
+@@ -114,7 +114,7 @@ namespace rdr {
+
+ // pos() returns the position in the stream.
+
+- virtual int pos() = 0;
++ virtual size_t pos() = 0;
+
+ // getptr(), getend() and setptr() are "dirty" methods which allow you to
+ // manipulate the buffer directly. This is useful for a stream which is a
+@@ -133,7 +133,7 @@ namespace rdr {
+ // instead of blocking to wait for the bytes, zero is returned if the bytes
+ // are not immediately available.
+
+- virtual int overrun(int itemSize, int nItems, bool wait=true) = 0;
++ virtual size_t overrun(size_t itemSize, size_t nItems, bool wait=true) = 0;
+
+ protected:
+
+Index: pkg-tigervnc/common/rdr/MemInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/MemInStream.h
++++ pkg-tigervnc/common/rdr/MemInStream.h
+@@ -36,7 +36,7 @@ namespace rdr {
+
+ public:
+
+- MemInStream(const void* data, int len, bool deleteWhenDone_=false)
++ MemInStream(const void* data, size_t len, bool deleteWhenDone_=false)
+ : start((const U8*)data), deleteWhenDone(deleteWhenDone_)
+ {
+ ptr = start;
+@@ -48,12 +48,12 @@ namespace rdr {
+ delete [] start;
+ }
+
+- int pos() { return ptr - start; }
+- void reposition(int pos) { ptr = start + pos; }
++ size_t pos() { return ptr - start; }
++ void reposition(size_t pos) { ptr = start + pos; }
+
+ private:
+
+- int overrun(int itemSize, int nItems, bool wait) { throw EndOfStream(); }
++ size_t overrun(size_t itemSize, size_t nItems, bool wait) { throw EndOfStream(); }
+ const U8* start;
+ bool deleteWhenDone;
+ };
+Index: pkg-tigervnc/common/rdr/MemOutStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/MemOutStream.h
++++ pkg-tigervnc/common/rdr/MemOutStream.h
+@@ -40,16 +40,16 @@ namespace rdr {
+ delete [] start;
+ }
+
+- void writeBytes(const void* data, int length) {
++ void writeBytes(const void* data, size_t length) {
+ check(length);
+ memcpy(ptr, data, length);
+ ptr += length;
+ }
+
+- int length() { return ptr - start; }
++ size_t length() { return ptr - start; }
+ void clear() { ptr = start; };
+ void clearAndZero() { memset(start, 0, ptr-start); clear(); }
+- void reposition(int pos) { ptr = start + pos; }
++ void reposition(size_t pos) { ptr = start + pos; }
+
+ // data() returns a pointer to the buffer.
+
+@@ -60,9 +60,9 @@ namespace rdr {
+ // overrun() either doubles the buffer or adds enough space for nItems of
+ // size itemSize bytes.
+
+- int overrun(int itemSize, int nItems) {
+- int len = ptr - start + itemSize * nItems;
+- if (len < (end - start) * 2)
++ size_t overrun(size_t itemSize, size_t nItems) {
++ size_t len = ptr - start + itemSize * nItems;
++ if (len < (size_t)(end - start) * 2)
+ len = (end - start) * 2;
+
+ U8* newStart = new U8[len];
+Index: pkg-tigervnc/common/rdr/OutStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/OutStream.h
++++ pkg-tigervnc/common/rdr/OutStream.h
+@@ -44,7 +44,7 @@ namespace rdr {
+ // itemSize bytes. Returns the number of items which fit (up to a maximum
+ // of nItems).
+
+- inline int check(int itemSize, int nItems=1)
++ inline size_t check(size_t itemSize, size_t nItems=1)
+ {
+ if (ptr + itemSize * nItems > end) {
+ if (ptr + itemSize > end)
+@@ -76,13 +76,13 @@ namespace rdr {
+ writeBytes(str, len);
+ }
+
+- inline void pad(int bytes) {
++ inline void pad(size_t bytes) {
+ while (bytes-- > 0) writeU8(0);
+ }
+
+- inline void skip(int bytes) {
++ inline void skip(size_t bytes) {
+ while (bytes > 0) {
+- int n = check(1, bytes);
++ size_t n = check(1, bytes);
+ ptr += n;
+ bytes -= n;
+ }
+@@ -90,11 +90,11 @@ namespace rdr {
+
+ // writeBytes() writes an exact number of bytes.
+
+- void writeBytes(const void* data, int length) {
++ void writeBytes(const void* data, size_t length) {
+ const U8* dataPtr = (const U8*)data;
+ const U8* dataEnd = dataPtr + length;
+ while (dataPtr < dataEnd) {
+- int n = check(1, dataEnd - dataPtr);
++ size_t n = check(1, dataEnd - dataPtr);
+ memcpy(ptr, dataPtr, n);
+ ptr += n;
+ dataPtr += n;
+@@ -103,9 +103,9 @@ namespace rdr {
+
+ // copyBytes() efficiently transfers data between streams
+
+- void copyBytes(InStream* is, int length) {
++ void copyBytes(InStream* is, size_t length) {
+ while (length > 0) {
+- int n = check(1, length);
++ size_t n = check(1, length);
+ is->readBytes(ptr, n);
+ ptr += n;
+ length -= n;
+@@ -124,7 +124,7 @@ namespace rdr {
+
+ // length() returns the length of the stream.
+
+- virtual int length() = 0;
++ virtual size_t length() = 0;
+
+ // flush() requests that the stream be flushed.
+
+@@ -145,7 +145,7 @@ namespace rdr {
+ // the number of items which fit (up to a maximum of nItems). itemSize is
+ // supposed to be "small" (a few bytes).
+
+- virtual int overrun(int itemSize, int nItems) = 0;
++ virtual size_t overrun(size_t itemSize, size_t nItems) = 0;
+
+ protected:
+
+Index: pkg-tigervnc/common/rdr/RandomStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/RandomStream.cxx
++++ pkg-tigervnc/common/rdr/RandomStream.cxx
+@@ -32,7 +32,7 @@
+
+ using namespace rdr;
+
+-const int DEFAULT_BUF_LEN = 256;
++const size_t DEFAULT_BUF_LEN = 256;
+
+ unsigned int RandomStream::seed;
+
+@@ -83,11 +83,11 @@ RandomStream::~RandomStream() {
+ #endif
+ }
+
+-int RandomStream::pos() {
++size_t RandomStream::pos() {
+ return offset + ptr - start;
+ }
+
+-int RandomStream::overrun(int itemSize, int nItems, bool wait) {
++size_t RandomStream::overrun(size_t itemSize, size_t nItems, bool wait) {
+ if (itemSize > DEFAULT_BUF_LEN)
+ throw Exception("RandomStream overrun: max itemSize exceeded");
+
+@@ -98,7 +98,7 @@ int RandomStream::overrun(int itemSize,
+ offset += ptr - start;
+ ptr = start;
+
+- int length = start + DEFAULT_BUF_LEN - end;
++ size_t length = start + DEFAULT_BUF_LEN - end;
+
+ #ifdef RFB_HAVE_WINCRYPT
+ if (provider) {
+@@ -109,7 +109,7 @@ int RandomStream::overrun(int itemSize,
+ #else
+ #ifndef WIN32
+ if (fp) {
+- int n = fread((U8*)end, length, 1, fp);
++ size_t n = fread((U8*)end, length, 1, fp);
+ if (n != 1)
+ throw rdr::SystemException("reading /dev/urandom or /dev/random failed",
+ errno);
+@@ -119,11 +119,11 @@ int RandomStream::overrun(int itemSize,
+ {
+ #endif
+ #endif
+- for (int i=0; i<length; i++)
++ for (size_t i=0; i<length; i++)
+ *(U8*)end++ = (int) (256.0*rand()/(RAND_MAX+1.0));
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+Index: pkg-tigervnc/common/rdr/RandomStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/RandomStream.h
++++ pkg-tigervnc/common/rdr/RandomStream.h
+@@ -39,14 +39,14 @@ namespace rdr {
+ RandomStream();
+ virtual ~RandomStream();
+
+- int pos();
++ size_t pos();
+
+ protected:
+- int overrun(int itemSize, int nItems, bool wait);
++ size_t overrun(size_t itemSize, size_t nItems, bool wait);
+
+ private:
+ U8* start;
+- int offset;
++ size_t offset;
+
+ static unsigned int seed;
+ #ifdef RFB_HAVE_WINCRYPT
+Index: pkg-tigervnc/common/rdr/TLSInStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/TLSInStream.cxx
++++ pkg-tigervnc/common/rdr/TLSInStream.cxx
+@@ -75,12 +75,12 @@ TLSInStream::~TLSInStream()
+ delete[] start;
+ }
+
+-int TLSInStream::pos()
++size_t TLSInStream::pos()
+ {
+ return offset + ptr - start;
+ }
+
+-int TLSInStream::overrun(int itemSize, int nItems, bool wait)
++size_t TLSInStream::overrun(size_t itemSize, size_t nItems, bool wait)
+ {
+ if (itemSize > bufSize)
+ throw Exception("TLSInStream overrun: max itemSize exceeded");
+@@ -93,19 +93,19 @@ int TLSInStream::overrun(int itemSize, i
+ ptr = start;
+
+ while (end < start + itemSize) {
+- int n = readTLS((U8*) end, start + bufSize - end, wait);
++ size_t n = readTLS((U8*) end, start + bufSize - end, wait);
+ if (!wait && n == 0)
+ return 0;
+ end += n;
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+ }
+
+-int TLSInStream::readTLS(U8* buf, int len, bool wait)
++size_t TLSInStream::readTLS(U8* buf, size_t len, bool wait)
+ {
+ int n;
+
+Index: pkg-tigervnc/common/rdr/TLSInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/TLSInStream.h
++++ pkg-tigervnc/common/rdr/TLSInStream.h
+@@ -36,17 +36,17 @@ namespace rdr {
+ TLSInStream(InStream* in, gnutls_session_t session);
+ virtual ~TLSInStream();
+
+- int pos();
++ size_t pos();
+
+ private:
+- int overrun(int itemSize, int nItems, bool wait);
+- int readTLS(U8* buf, int len, bool wait);
++ size_t overrun(size_t itemSize, size_t nItems, bool wait);
++ size_t readTLS(U8* buf, size_t len, bool wait);
+ static ssize_t pull(gnutls_transport_ptr_t str, void* data, size_t size);
+
+ gnutls_session_t session;
+ InStream* in;
+- int bufSize;
+- int offset;
++ size_t bufSize;
++ size_t offset;
+ U8* start;
+ };
+ };
+Index: pkg-tigervnc/common/rdr/TLSOutStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/TLSOutStream.cxx
++++ pkg-tigervnc/common/rdr/TLSOutStream.cxx
+@@ -75,7 +75,7 @@ TLSOutStream::~TLSOutStream()
+ delete [] start;
+ }
+
+-int TLSOutStream::length()
++size_t TLSOutStream::length()
+ {
+ return offset + ptr - start;
+ }
+@@ -84,7 +84,7 @@ void TLSOutStream::flush()
+ {
+ U8* sentUpTo = start;
+ while (sentUpTo < ptr) {
+- int n = writeTLS(sentUpTo, ptr - sentUpTo);
++ size_t n = writeTLS(sentUpTo, ptr - sentUpTo);
+ sentUpTo += n;
+ offset += n;
+ }
+@@ -93,20 +93,20 @@ void TLSOutStream::flush()
+ out->flush();
+ }
+
+-int TLSOutStream::overrun(int itemSize, int nItems)
++size_t TLSOutStream::overrun(size_t itemSize, size_t nItems)
+ {
+ if (itemSize > bufSize)
+ throw Exception("TLSOutStream overrun: max itemSize exceeded");
+
+ flush();
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+ }
+
+-int TLSOutStream::writeTLS(const U8* data, int length)
++size_t TLSOutStream::writeTLS(const U8* data, size_t length)
+ {
+ int n;
+
+Index: pkg-tigervnc/common/rdr/TLSOutStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/TLSOutStream.h
++++ pkg-tigervnc/common/rdr/TLSOutStream.h
+@@ -36,20 +36,20 @@ namespace rdr {
+ virtual ~TLSOutStream();
+
+ void flush();
+- int length();
++ size_t length();
+
+ protected:
+- int overrun(int itemSize, int nItems);
++ size_t overrun(size_t itemSize, size_t nItems);
+
+ private:
+- int writeTLS(const U8* data, int length);
++ size_t writeTLS(const U8* data, size_t length);
+ static ssize_t push(gnutls_transport_ptr_t str, const void* data, size_t size);
+
+ gnutls_session_t session;
+ OutStream* out;
+- int bufSize;
++ size_t bufSize;
+ U8* start;
+- int offset;
++ size_t offset;
+ };
+ };
+
+Index: pkg-tigervnc/common/rdr/ZlibInStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/ZlibInStream.cxx
++++ pkg-tigervnc/common/rdr/ZlibInStream.cxx
+@@ -26,7 +26,7 @@ using namespace rdr;
+
+ enum { DEFAULT_BUF_SIZE = 16384 };
+
+-ZlibInStream::ZlibInStream(int bufSize_)
++ZlibInStream::ZlibInStream(size_t bufSize_)
+ : underlying(0), bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0),
+ zs(NULL), bytesIn(0)
+ {
+@@ -40,14 +40,14 @@ ZlibInStream::~ZlibInStream()
+ delete [] start;
+ }
+
+-void ZlibInStream::setUnderlying(InStream* is, int bytesIn_)
++void ZlibInStream::setUnderlying(InStream* is, size_t bytesIn_)
+ {
+ underlying = is;
+ bytesIn = bytesIn_;
+ ptr = end = start;
+ }
+
+-int ZlibInStream::pos()
++size_t ZlibInStream::pos()
+ {
+ return offset + ptr - start;
+ }
+@@ -96,7 +96,7 @@ void ZlibInStream::deinit()
+ zs = NULL;
+ }
+
+-int ZlibInStream::overrun(int itemSize, int nItems, bool wait)
++size_t ZlibInStream::overrun(size_t itemSize, size_t nItems, bool wait)
+ {
+ if (itemSize > bufSize)
+ throw Exception("ZlibInStream overrun: max itemSize exceeded");
+@@ -108,12 +108,12 @@ int ZlibInStream::overrun(int itemSize,
+ end -= ptr - start;
+ ptr = start;
+
+- while (end - ptr < itemSize) {
++ while ((size_t)(end - ptr) < itemSize) {
+ if (!decompress(wait))
+ return 0;
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+@@ -131,11 +131,11 @@ bool ZlibInStream::decompress(bool wait)
+ zs->next_out = (U8*)end;
+ zs->avail_out = start + bufSize - end;
+
+- int n = underlying->check(1, 1, wait);
++ size_t n = underlying->check(1, 1, wait);
+ if (n == 0) return false;
+ zs->next_in = (U8*)underlying->getptr();
+ zs->avail_in = underlying->getend() - underlying->getptr();
+- if ((int)zs->avail_in > bytesIn)
++ if (zs->avail_in > bytesIn)
+ zs->avail_in = bytesIn;
+
+ int rc = inflate(zs, Z_SYNC_FLUSH);
+Index: pkg-tigervnc/common/rdr/ZlibInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/ZlibInStream.h
++++ pkg-tigervnc/common/rdr/ZlibInStream.h
+@@ -34,12 +34,12 @@ namespace rdr {
+
+ public:
+
+- ZlibInStream(int bufSize=0);
++ ZlibInStream(size_t bufSize=0);
+ virtual ~ZlibInStream();
+
+- void setUnderlying(InStream* is, int bytesIn);
++ void setUnderlying(InStream* is, size_t bytesIn);
+ void flushUnderlying();
+- int pos();
++ size_t pos();
+ void reset();
+
+ private:
+@@ -47,14 +47,14 @@ namespace rdr {
+ void init();
+ void deinit();
+
+- int overrun(int itemSize, int nItems, bool wait);
++ size_t overrun(size_t itemSize, size_t nItems, bool wait);
+ bool decompress(bool wait);
+
+ InStream* underlying;
+- int bufSize;
+- int offset;
++ size_t bufSize;
++ size_t offset;
+ z_stream_s* zs;
+- int bytesIn;
++ size_t bytesIn;
+ U8* start;
+ };
+
+Index: pkg-tigervnc/common/rdr/ZlibOutStream.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/ZlibOutStream.cxx
++++ pkg-tigervnc/common/rdr/ZlibOutStream.cxx
+@@ -30,7 +30,7 @@ using namespace rdr;
+
+ enum { DEFAULT_BUF_SIZE = 16384 };
+
+-ZlibOutStream::ZlibOutStream(OutStream* os, int bufSize_, int compressLevel)
++ZlibOutStream::ZlibOutStream(OutStream* os, size_t bufSize_, int compressLevel)
+ : underlying(os), compressionLevel(compressLevel), newLevel(compressLevel),
+ bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
+ {
+@@ -72,7 +72,7 @@ void ZlibOutStream::setCompressionLevel(
+ newLevel = level;
+ }
+
+-int ZlibOutStream::length()
++size_t ZlibOutStream::length()
+ {
+ return offset + ptr - start;
+ }
+@@ -95,7 +95,7 @@ void ZlibOutStream::flush()
+ ptr = start;
+ }
+
+-int ZlibOutStream::overrun(int itemSize, int nItems)
++size_t ZlibOutStream::overrun(size_t itemSize, size_t nItems)
+ {
+ #ifdef ZLIBOUT_DEBUG
+ fprintf(stderr,"zos overrun\n");
+@@ -106,7 +106,7 @@ int ZlibOutStream::overrun(int itemSize,
+
+ checkCompressionLevel();
+
+- while (end - ptr < itemSize) {
++ while ((size_t)(end - ptr) < itemSize) {
+ zs->next_in = start;
+ zs->avail_in = ptr - start;
+
+@@ -127,7 +127,7 @@ int ZlibOutStream::overrun(int itemSize,
+ }
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
+Index: pkg-tigervnc/common/rdr/ZlibOutStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/ZlibOutStream.h
++++ pkg-tigervnc/common/rdr/ZlibOutStream.h
+@@ -35,25 +35,25 @@ namespace rdr {
+
+ public:
+
+- ZlibOutStream(OutStream* os=0, int bufSize=0, int compressionLevel=-1);
++ ZlibOutStream(OutStream* os=0, size_t bufSize=0, int compressionLevel=-1);
+ virtual ~ZlibOutStream();
+
+ void setUnderlying(OutStream* os);
+ void setCompressionLevel(int level=-1);
+ void flush();
+- int length();
++ size_t length();
+
+ private:
+
+- int overrun(int itemSize, int nItems);
++ size_t overrun(size_t itemSize, size_t nItems);
+ void deflate(int flush);
+ void checkCompressionLevel();
+
+ OutStream* underlying;
+ int compressionLevel;
+ int newLevel;
+- int bufSize;
+- int offset;
++ size_t bufSize;
++ size_t offset;
+ z_stream_s* zs;
+ U8* start;
+ };
+Index: pkg-tigervnc/common/rfb/Configuration.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/Configuration.cxx
++++ pkg-tigervnc/common/rfb/Configuration.cxx
+@@ -410,7 +410,7 @@ StringParameter::operator const char *()
+ // -=- BinaryParameter
+
+ BinaryParameter::BinaryParameter(const char* name_, const char* desc_,
+- const void* v, int l, ConfigurationObject co)
++ const void* v, size_t l, ConfigurationObject co)
+ : VoidParameter(name_, desc_, co), value(0), length(0), def_value((char*)v), def_length(l) {
+ if (l) {
+ value = new char[l];
+@@ -430,7 +430,7 @@ bool BinaryParameter::setParam(const cha
+ return rdr::HexInStream::hexStrToBin(v, &value, &length);
+ }
+
+-void BinaryParameter::setParam(const void* v, int len) {
++void BinaryParameter::setParam(const void* v, size_t len) {
+ LOCK_CONFIG;
+ if (immutable) return;
+ vlog.debug("set %s(Binary)", getName());
+@@ -451,7 +451,7 @@ char* BinaryParameter::getValueStr() con
+ return rdr::HexOutStream::binToHexStr(value, length);
+ }
+
+-void BinaryParameter::getData(void** data_, int* length_) const {
++void BinaryParameter::getData(void** data_, size_t* length_) const {
+ LOCK_CONFIG;
+ if (length_) *length_ = length;
+ if (data_) {
+Index: pkg-tigervnc/common/rfb/Configuration.h
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/Configuration.h
++++ pkg-tigervnc/common/rfb/Configuration.h
+@@ -245,23 +245,24 @@ namespace rfb {
+
+ class BinaryParameter : public VoidParameter {
+ public:
+- BinaryParameter(const char* name_, const char* desc_, const void* v, int l,
+- ConfigurationObject co=ConfGlobal);
++ BinaryParameter(const char* name_, const char* desc_,
++ const void* v, size_t l,
++ ConfigurationObject co=ConfGlobal);
+ virtual ~BinaryParameter();
+ virtual bool setParam(const char* value);
+- virtual void setParam(const void* v, int l);
++ virtual void setParam(const void* v, size_t l);
+ virtual char* getDefaultStr() const;
+ virtual char* getValueStr() const;
+
+ // getData() will return length zero if there is no data
+ // NB: data may be set to zero, OR set to a zero-length buffer
+- void getData(void** data, int* length) const;
++ void getData(void** data, size_t* length) const;
+
+ protected:
+ char* value;
+- int length;
++ size_t length;
+ char* def_value;
+- int def_length;
++ size_t def_length;
+ };
+
+ // -=- ParameterIterator
+Index: pkg-tigervnc/common/rfb/Password.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/Password.cxx
++++ pkg-tigervnc/common/rfb/Password.cxx
+@@ -38,7 +38,7 @@ PlainPasswd::PlainPasswd() {}
+ PlainPasswd::PlainPasswd(char* pwd) : CharArray(pwd) {
+ }
+
+-PlainPasswd::PlainPasswd(int len) : CharArray(len) {
++PlainPasswd::PlainPasswd(size_t len) : CharArray(len) {
+ }
+
+ PlainPasswd::PlainPasswd(const ObfuscatedPasswd& obfPwd) : CharArray(9) {
+@@ -63,11 +63,11 @@ void PlainPasswd::replaceBuf(char* b) {
+ ObfuscatedPasswd::ObfuscatedPasswd() : length(0) {
+ }
+
+-ObfuscatedPasswd::ObfuscatedPasswd(int len) : CharArray(len), length(len) {
++ObfuscatedPasswd::ObfuscatedPasswd(size_t len) : CharArray(len), length(len) {
+ }
+
+ ObfuscatedPasswd::ObfuscatedPasswd(const PlainPasswd& plainPwd) : CharArray(8), length(8) {
+- int l = strlen(plainPwd.buf), i;
++ size_t l = strlen(plainPwd.buf), i;
+ for (i=0; i<8; i++)
+ buf[i] = i<l ? plainPwd.buf[i] : 0;
+ deskey(d3desObfuscationKey, EN0);
+Index: pkg-tigervnc/common/rfb/Password.h
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/Password.h
++++ pkg-tigervnc/common/rfb/Password.h
+@@ -28,7 +28,7 @@ namespace rfb {
+ public:
+ PlainPasswd();
+ PlainPasswd(char* pwd);
+- PlainPasswd(int len);
++ PlainPasswd(size_t len);
+ PlainPasswd(const ObfuscatedPasswd& obfPwd);
+ ~PlainPasswd();
+ void replaceBuf(char* b);
+@@ -37,10 +37,10 @@ namespace rfb {
+ class ObfuscatedPasswd : public CharArray {
+ public:
+ ObfuscatedPasswd();
+- ObfuscatedPasswd(int l);
++ ObfuscatedPasswd(size_t l);
+ ObfuscatedPasswd(const PlainPasswd& plainPwd);
+ ~ObfuscatedPasswd();
+- int length;
++ size_t length;
+ };
+
+ }
+Index: pkg-tigervnc/common/rfb/util.h
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/util.h
++++ pkg-tigervnc/common/rfb/util.h
+@@ -45,7 +45,7 @@ namespace rfb {
+ public:
+ CharArray() : buf(0) {}
+ CharArray(char* str) : buf(str) {} // note: assumes ownership
+- CharArray(int len) {
++ CharArray(size_t len) {
+ buf = new char[len];
+ }
+ ~CharArray() {
+Index: pkg-tigervnc/tests/encperf.cxx
+===================================================================
+--- pkg-tigervnc.orig/tests/encperf.cxx
++++ pkg-tigervnc/tests/encperf.cxx
+@@ -71,11 +71,11 @@ class DummyOutStream : public rdr::OutSt
+ public:
+ DummyOutStream();
+
+- virtual int length();
++ virtual size_t length();
+ virtual void flush();
+
+ private:
+- virtual int overrun(int itemSize, int nItems);
++ virtual size_t overrun(size_t itemSize, size_t nItems);
+
+ int offset;
+ rdr::U8 buf[131072];
+@@ -141,7 +141,7 @@ DummyOutStream::DummyOutStream()
+ end = buf + sizeof(buf);
+ }
+
+-int DummyOutStream::length()
++size_t DummyOutStream::length()
+ {
+ flush();
+ return offset;
+@@ -153,7 +153,7 @@ void DummyOutStream::flush()
+ ptr = buf;
+ }
+
+-int DummyOutStream::overrun(int itemSize, int nItems)
++size_t DummyOutStream::overrun(size_t itemSize, size_t nItems)
+ {
+ flush();
+ if (itemSize * nItems > end - ptr)
+Index: pkg-tigervnc/common/rdr/SubstitutingInStream.h
+===================================================================
+--- pkg-tigervnc.orig/common/rdr/SubstitutingInStream.h
++++ pkg-tigervnc/common/rdr/SubstitutingInStream.h
+@@ -45,9 +45,9 @@ namespace rdr {
+ delete [] subst;
+ }
+
+- int pos() { return underlying->pos(); }
++ size_t pos() { return underlying->pos(); }
+
+- virtual int overrun(int itemSize, int nItems, bool wait=true) {
++ virtual size_t overrun(size_t itemSize, size_t nItems, bool wait=true) {
+ if (itemSize != 1)
+ throw new rdr::Exception("SubstitutingInStream: itemSize must be 1");
+
+@@ -85,7 +85,7 @@ namespace rdr {
+ if (!subst && dollar) end = dollar;
+ }
+
+- if (itemSize * nItems > end - ptr)
++ if (itemSize * nItems > (size_t)(end - ptr))
+ nItems = (end - ptr) / itemSize;
+
+ return nItems;
diff -Nru tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15695.patch tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15695.patch
--- tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15695.patch 1970-01-01 01:00:00.000000000 +0100
+++ tigervnc-1.7.0+dfsg/debian/patches/CVE-2019-15695.patch 2020-01-18 19:30:42.000000000 +0100
@@ -0,0 +1,32 @@
+From 05e28490873a861379c943bf616614b78b558b89 Mon Sep 17 00:00:00 2001
+From: Pierre Ossman <ossman@cendio.se>
+Date: Wed, 2 Oct 2019 16:06:08 +0200
+Subject: [PATCH] Handle pixel formats with odd shift values
+
+Our fast paths assume that each channel fits in to a separate byte.
+That means the shift needs to be a multiple of 8. Start actually
+checking this so that a client cannot trip us up and possibly cause
+incorrect code exection.
+
+Issue found by Pavel Cheremushkin from Kaspersky Lab.
+---
+ common/rfb/PixelFormat.cxx | 6 ++++++
+ 1 files changed, 12 insertions(+)
+
+Index: pkg-tigervnc/common/rfb/PixelFormat.cxx
+===================================================================
+--- pkg-tigervnc.orig/common/rfb/PixelFormat.cxx
++++ pkg-tigervnc/common/rfb/PixelFormat.cxx
+@@ -199,6 +199,12 @@ bool PixelFormat::is888(void) const
+ return false;
+ if (blueMax != 255)
+ return false;
++ if ((redShift & 0x7) != 0)
++ return false;
++ if ((greenShift & 0x7) != 0)
++ return false;
++ if ((blueShift & 0x7) != 0)
++ return false;
+
+ return true;
+ }
diff -Nru tigervnc-1.7.0+dfsg/debian/patches/series tigervnc-1.7.0+dfsg/debian/patches/series
--- tigervnc-1.7.0+dfsg/debian/patches/series 2017-04-09 16:38:13.000000000 +0200
+++ tigervnc-1.7.0+dfsg/debian/patches/series 2020-01-18 19:30:42.000000000 +0100
@@ -55,3 +55,8 @@
CVE-2017-7392-Delete-underlying-ssecurity-in-SSecurityVeNCrypt.patch
CVE-2017-7394-0001-Fix-checkNoWait-logic-in-SSecurityPlain.patch
CVE-2017-7394-0002-Limit-max-username-password-size-in-SSecurityPlain.patch
+CVE-2019-15691.patch
+CVE-2019-15692.patch
+CVE-2019-15693.patch
+CVE-2019-15694.patch
+CVE-2019-15695.patch
--- End Message ---