Heap-based Buffer Overflow Affecting perl-PerlMagick package, versions <7.0.7.34-3.90.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.08% (36th percentile)

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  • Snyk IDSNYK-SLES151-PERLPERLMAGICK-2692341
  • published14 Apr 2022
  • disclosed18 Jan 2021

Introduced: 18 Jan 2021

CVE-2020-25674  (opens in a new tab)
CWE-122  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade SLES:15.1 perl-PerlMagick to version 7.0.7.34-3.90.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl-PerlMagick package and not the perl-PerlMagick package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

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. The patch replaces the hardcoded 256 value with a call to MagickMin() to ensure the proper value is used. This could impact application availability when a specially crafted input file is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.

CVSS Scores

version 3.1