Out-of-bounds Write Affecting ImageMagick/ImageMagick package, versions [,6.9.10-68)[7.0.8,7.0.8-68)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-UNMANAGED-IMAGEMAGICKIMAGEMAGICK-3007777
  • published26 Jan 2022
  • disclosed8 Dec 2020
  • creditUnknown

Introduced: 8 Dec 2020

CVE-2020-25664  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade ImageMagick/ImageMagick to version 6.9.10-68, 7.0.8-68 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write. In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick versions prior to 6.9.10-68 and 7.0.8-68.

CVSS Scores

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