Riskcovery

CVE-2026-42169

Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)

State
Published
Severity
7.3 High
Published
Aug 4, 2026
Updated
Nov 2, 2026
Reserved
Apr 24, 2026

Read the record on cve.org

Description

A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially crafted image file, potentially leading to code execution.

Scores

CVSSScoreVectorSource
3.17.3 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hredhat

Weaknesses

  • CWE-131 Incorrect Calculation of Buffer Size

Affected Products

ProductVersions
Red Hat Enterprise Linux 9Red Hat
  • 2:3.0.4-4.el9_8.9 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
  • 2:2.99.8-4.el9_2.7 and laterNot affected
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat
  • 2:2.99.8-4.el9_4.19 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat
  • 2:2.99.8-4.el9_6.20 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 8Red Hat

        References

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