Descriptionstb_image is a single file MIT licensed library for processing images. A crafted image file can trigger `stbi__load_gif_main_outofmem` attempt to double-free the out variable. This happens in `stbi__load_gif_main` because when the `layers * stride` value is zero the behavior is implementation defined, but common that realloc frees the old memory and returns null pointer. Since it attempts to double-free the memory a few lines below the first “free”, the issue can be potentially exploited only in a multi-threaded environment. In the worst case this may lead to code execution.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1054911

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libstb (PTS)buster0.0~git20180212.15.e6afb9c-1vulnerable
buster (security)0.0~git20180212.15.e6afb9c-1+deb10u1vulnerable
sid, trixie0.0~git20230129.5736b15+ds-1.2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bookworm] - libstb <no-dsa> (Minor issue)
[bullseye] - libstb <no-dsa> (Minor issue)
[buster] - libstb <no-dsa> (Minor issue) (issue 4)

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