DescriptionEndless recursion exists in xkbcomp/expr.c in xkbcommon and libxkbcommon before 0.8.1, which could be used by local attackers to crash xkbcommon users by supplying a crafted keymap file that triggers boolean negation.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs907302

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxkbcommon (PTS)buster0.8.2-1fixed
sid, trixie, bookworm1.5.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[stretch] - libxkbcommon <ignored> (Minor issue)
[jessie] - libxkbcommon <no-dsa> (Minor issue)

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