DescriptionLua through 5.4.0 has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lua5.1 (PTS)buster, bullseye5.1.5-8.1fixed
sid, trixie, bookworm5.1.5-9fixed
lua5.2 (PTS)buster, bullseye5.2.4-1.1fixed
sid, trixie, bookworm5.2.4-3fixed
lua5.3 (PTS)buster, bullseye5.3.3-1.1fixed
buster (security)5.3.3-1.1+deb10u1fixed
sid, trixie, bookworm5.3.6-2fixed
lua5.4 (PTS)bullseye5.4.2-2fixed
sid, trixie, bookworm5.4.4-3fixed
lua50 (PTS)buster5.0.3-8fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lua5.1source(unstable)(not affected)
lua5.2source(unstable)(not affected)
lua5.3source(unstable)(not affected)
lua50source(unstable)(not affected)


- lua5.3 <not-affected> (Specific to 5.4)
- lua5.2 <not-affected> (Specific to 5.4)
- lua5.1 <not-affected> (Specific to 5.4)
- lua50 <not-affected> (Specific to 5.4) (v5.4.1)

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