Integer Overflow or Wraparound Affecting imagemagick package, versions <8:6.9.10.23+dfsg-2.1ubuntu13.3
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Test your applications- Snyk ID SNYK-UBUNTU2010-IMAGEMAGICK-1134001
- published 11 Jun 2021
- disclosed 8 Dec 2020
Introduced: 8 Dec 2020
CVE-2020-27754 Open this link in a new tabHow to fix?
Upgrade Ubuntu:20.10 imagemagick to version 8:6.9.10.23+dfsg-2.1ubuntu13.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream imagemagick package and not the imagemagick package as distributed by Ubuntu.
See How to fix? for Ubuntu:20.10 relevant fixed versions and status.
In IntensityCompare() of /magick/quantize.c, there are calls to PixelPacketIntensity() which could return overflowed values to the caller when ImageMagick processes a crafted input file. To mitigate this, the patch introduces and uses the ConstrainPixelIntensity() function, which forces the pixel intensities to be within the proper bounds in the event of an overflow. This flaw affects ImageMagick versions prior to 6.9.10-69 and 7.0.8-69.