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2 vulnerabilities by libsdl-org
CVE-2026-35444 (GCVE-0-2026-35444)
Vulnerability from nvd – Published: 2026-04-06 21:44 – Updated: 2026-04-08 14:06
VLAI
Title
SDL_image has a heap buffer overflow READ via unchecked colormap index in XCF loader
Summary
SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/libsdl-org/SDL_image/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| libsdl-org | SDL_image |
Affected:
< 996bf12888925932daace576e09c3053410896f8
|
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CVE-2026-35444 (GCVE-0-2026-35444)
Vulnerability from cvelistv5 – Published: 2026-04-06 21:44 – Updated: 2026-04-08 14:06
VLAI
Title
SDL_image has a heap buffer overflow READ via unchecked colormap index in XCF loader
Summary
SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/libsdl-org/SDL_image/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| libsdl-org | SDL_image |
Affected:
< 996bf12888925932daace576e09c3053410896f8
|
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