CVE-2025-9300

NameCVE-2025-9300
DescriptionA vulnerability was found in saitoha libsixel up to 1.10.3. Affected by this issue is the function sixel_debug_print_palette of the file src/encoder.c of the component img2sixel. The manipulation results in stack-based buffer overflow. The attack must be initiated from a local position. The exploit has been made public and could be used. The patch is identified as 316c086e79d66b62c0c4bc66229ee894e4fdb7d1. Applying a patch is advised to resolve this issue.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1111877

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libsixel (PTS)bullseye1.8.6-2vulnerable
bookworm1.10.3-3vulnerable
forky, sid, trixie1.10.5-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libsixelsource(unstable)(unfixed)1111877

Notes

[trixie] - libsixel <no-dsa> (Minor issue)
[bookworm] - libsixel <no-dsa> (Minor issue)
[bullseye] - libsixel <postponed> (Minor issue)
https://github.com/saitoha/libsixel/issues/200
https://github.com/saitoha/libsixel/commit/316c086e79d66b62c0c4bc66229ee894e4fdb7d1

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