Integer Overflow or Wraparound Affecting gimp package, versions *


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-GIMP-19235201
  • published25 Aug 2026
  • disclosed24 Aug 2026

Introduced: 24 Aug 2026

NewCVE-2026-78465  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable gimp.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gimp package and not the gimp package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

CVSS Base Scores

version 3.1