CVE-2026-117557
SDL_image through 3.4.8 and through 2.8.12 contains a stack out-of-bounds read vulnerability in IMG_LoadLBM_IO() in src/IMG_lbm.c that skips bitplane count validation when HAM mode is set. Attackers can supply a crafted ILBM file with more than 8 HAM bitplanes to read past the colormap stack array, causing crashes or disclosing stack memory.
- CVSS 4.0
- 6.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 6.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H - CWE
- CWE-125
- Published
- Modified
- Record from
- the NVD, synced
References
- https://github.com/libsdl-org/SDL_image
- https://github.com/libsdl-org/SDL_image/blob/release-3.4.8/src/IMG_lbm.c#L240
- https://github.com/libsdl-org/SDL_image/commit/5cfbe85f3a783417eec4d5aa0660b40c2cff5292
- https://github.com/libsdl-org/SDL_image/commit/9c0622c36cf01e9ecba4bfdd6c4aa2b21c8cf996
- https://github.com/libsdl-org/SDL_image/issues/769