CVE-2020-24371

NameCVE-2020-24371
Descriptionlgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs971010

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lua5.3 (PTS)stretch5.3.3-1fixed
stretch (security)5.3.3-1+deb9u1fixed
bullseye, sid, buster5.3.3-1.1fixed
lua5.4 (PTS)bullseye, sid5.4.0-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lua5.3source(unstable)(not affected)
lua5.4source(unstable)(unfixed)971010

Notes

- lua5.3 <not-affected> (Vulnerable code introduced in 5.4.0)
https://github.com/lua/lua/commit/a6da1472c0c5e05ff249325f979531ad51533110
https://www.lua.org/bugs.html#5.4.0-10

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