CVE-2026-42170
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A heap-based buffer overflow vulnerability exists in the GIMP DDS (DirectDraw Surface) file parser. When a crafted DDS file declares a D3D9 pixel format but sets a lower bits-per-pixel (bpp) value in the header, the loader allocates an undersized heap buffer. Subsequent pixel data consumption at the real format's stride causes a write past the heap buffer boundary, leading to heap metadata corruption and potential code execution.
Affected Software
| Vendor | Product | Version Range | Status |
|---|
Weaknesses
- CWE-131: Incorrect Calculation of Buffer Size
Workarounds
Users should avoid opening untrusted DirectDraw Surface (DDS) image files with GIMP. As a general security practice, only process files from trusted sources. If GIMP is not essential, consider removing the gimp package to eliminate this attack vector.
References
- https://access.redhat.com/security/cve/CVE-2026-42170
- https://bugzilla.redhat.com/show_bug.cgi?id=2461726
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