DescriptionBuffer Overflow in the "sixel_encoder_encode_bytes" function of Libsixel v1.8.6 allows attackers to cause a Denial of Service (DoS).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs988159

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libsixel (PTS)buster1.8.2-1+deb10u1vulnerable
bookworm, sid1.10.3-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bookworm] - libsixel <no-dsa> (Minor issue, fix modifies the API)
[bullseye] - libsixel <ignored> (Minor issue, fix modifies the API)
[buster] - libsixel <no-dsa> (Minor issue)
[stretch] - libsixel <postponed> (Minor issue; can be fixed in next update) (old/defunct repo)

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