Integer Overflow or Wraparound Affecting gimp:2.8/pygtk2-codegen package, versions <0:2.24.0-25.module_el8.9.0+3725+d1441900


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.3% (21st percentile)

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  • Snyk IDSNYK-ALMALINUX8-GIMP-19511408
  • published3 Sept 2026
  • disclosed5 Aug 2026

Introduced: 5 Aug 2026

CVE-2026-66758  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 gimp:2.8/pygtk2-codegen to version 0:2.24.0-25.module_el8.9.0+3725+d1441900 or higher.
This issue was patched in ALSA-2026:62507.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gimp:2.8/pygtk2-codegen package and not the gimp:2.8/pygtk2-codegen package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

CVSS Base Scores

version 3.1