Debian Long Term Support / LTS Security Information / 2021 / Security Information -- DLA-2523-1 imagemagick

Debian Security Advisory

DLA-2523-1 imagemagick -- LTS security update

Date Reported:

12 Jan 2021

Affected Packages:

imagemagick

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 878544, Bug 972797, Bug 977205.
In Mitre's CVE dictionary: CVE-2017-14528, CVE-2020-19667, CVE-2020-25665, CVE-2020-25674, CVE-2020-27560, CVE-2020-27750, CVE-2020-27760, CVE-2020-27763, CVE-2020-27765, CVE-2020-27773, CVE-2020-29599.

More information:

Several security vulnerabilities were found in ImageMagick, a suite of image manipulation programs. An attacker could cause denial of service and execution of arbitrary code when a crafted image file is processed.

• CVE-2017-14528

  The TIFFSetProfiles function in coders/tiff.c has incorrect expectations about whether LibTIFF TIFFGetField return values imply that data validation has occurred, which allows remote attackers to cause a denial of service (use-after-free after an invalid call to TIFFSetField, and application crash) via a crafted file.

• CVE-2020-19667

  Stack-based buffer overflow and unconditional jump in ReadXPMImage in coders/xpm.c

• CVE-2020-25665

  The PALM image coder at coders/palm.c makes an improper call to AcquireQuantumMemory() in routine WritePALMImage() because it needs to be offset by 256. This can cause a out-of-bounds read later on in the routine. This could cause impact to reliability.

• CVE-2020-25674

  WriteOnePNGImage() from coders/png.c (the PNG coder) has a for loop with an improper exit condition that can allow an out-of-bounds READ via heap-buffer-overflow. This occurs because it is possible for the colormap to have less than 256 valid values but the loop condition will loop 256 times, attempting to pass invalid colormap data to the event logger.

• CVE-2020-27560

  ImageMagick allows Division by Zero in OptimizeLayerFrames in MagickCore/layer.c, which may cause a denial of service.

• CVE-2020-27750

  A flaw was found in MagickCore/colorspace-private.h and MagickCore/quantum.h. An attacker who submits a crafted file that is processedcould trigger undefined behavior in the form of values outside the range of type `unsigned char` and math division by zero. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior.

• CVE-2020-27760

  In `GammaImage()` of /MagickCore/enhance.c, depending on the `gamma` value, it's possible to trigger a divide-by-zero condition when a crafted input file is processed by ImageMagick. This could lead to an impact to application availability.

• CVE-2020-27763

  A flaw was found in MagickCore/resize.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior.

• CVE-2020-27765

  A flaw was found in MagickCore/segment.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior.

• CVE-2020-27773

  A flaw was found in MagickCore/gem-private.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned char` or division by zero. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior.

• CVE-2020-29599

  ImageMagick mishandles the -authenticate option, which allows setting a password for password-protected PDF files. The user-controlled password was not properly escaped/sanitized and it was therefore possible to inject additional shell commands via coders/pdf.c.

For Debian 9 stretch, these problems have been fixed in version 8:6.9.7.4+dfsg-11+deb9u11.

We recommend that you upgrade your imagemagick packages.

For the detailed security status of imagemagick please refer to its security tracker page at: https://security-tracker.debian.org/tracker/imagemagick

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