Integer Overflow or Wraparound Affecting ImageMagick package, versions <7.0.7.34-3.90.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
1.18% (65th percentile)

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  • Snyk IDSNYK-SLES151-IMAGEMAGICK-2700043
  • published14 Apr 2022
  • disclosed18 Jan 2021

Introduced: 18 Jan 2021

CVE-2020-27771  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 ImageMagick to version 7.0.7.34-3.90.1 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 SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

In RestoreMSCWarning() of /coders/pdf.c there are several areas where calls to GetPixelIndex() could result in values outside the range of representable for the unsigned char type. The patch casts the return value of GetPixelIndex() to ssize_t type to avoid this bug. This undefined behavior could be triggered when ImageMagick processes a crafted pdf file. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was demonstrated in this case. This flaw affects ImageMagick versions prior to 7.0.9-0.

CVSS Base Scores

version 3.1