[SECURITY] [DLA 2110-1] netty-3.9 security update
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Package : netty-3.9
Version : 3.9.0.Final-1+deb8u1
CVE ID : CVE-2014-0193 CVE-2014-3488 CVE-2019-16869 CVE-2019-20444
CVE-2019-20445 CVE-2020-7238
Debian Bug : 746639 941266 950966 950967
Several vulnerabilities were discovered in Netty, a Java NIO
client/server socket framework:
CVE-2014-0193
WebSocket08FrameDecoder allows remote attackers to cause a denial
of service (memory consumption) via a TextWebSocketFrame followed
by a long stream of ContinuationWebSocketFrames.
CVE-2014-3488
The SslHandler allows remote attackers to cause a denial of
service (infinite loop and CPU consumption) via a crafted
SSLv2Hello message.
CVE-2019-16869
Netty mishandles whitespace before the colon in HTTP headers (such
as a "Transfer-Encoding : chunked" line), which leads to HTTP
request smuggling.
CVE-2019-20444
HttpObjectDecoder.java allows an HTTP header that lacks a colon,
which might be interpreted as a separate header with an incorrect
syntax, or might be interpreted as an "invalid fold."
CVE-2019-20445
HttpObjectDecoder.java allows a Content-Length header to be
accompanied by a second Content-Length header, or by a
Transfer-Encoding header.
CVE-2020-7238
Netty allows HTTP Request Smuggling because it mishandles
Transfer-Encoding whitespace (such as a
[space]Transfer-Encoding:chunked line) and a later Content-Length
header.
For Debian 8 "Jessie", these problems have been fixed in version
3.9.0.Final-1+deb8u1.
We recommend that you upgrade your netty-3.9 packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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