[pkg-lua-devel] Bug#971010: lua5.4: CVE-2020-24371

[Salvatore Bonaccorso]

Source: lua5.4
Version: 5.4.0-2
Severity: important
Tags: security upstream fixed-upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for lua5.4.

CVE-2020-24371[0]:
| lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the
| sweep phase, leading to a memory access violation involving
| collectgarbage.

Upstream commit is at [1]. Note that the CVE reference from MITRE
seems to (wrongly?) point to https://www.lua.org/bugs.html#5.4.0-9
which should probably be https://www.lua.org/bugs.html#5.4.0-10?

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2020-24371
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24371
[1] https://github.com/lua/lua/commit/a6da1472c0c5e05ff249325f979531ad51533110

Regards,
Salvatore