CVE-2020-12723

NameCVE-2020-12723
Descriptionregcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.
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 Bugs962005

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
perl (PTS)stretch5.24.1-3+deb9u6vulnerable
stretch (security)5.24.1-3+deb9u5vulnerable
buster5.28.1-6vulnerable
bullseye, sid5.30.3-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
perlsource(unstable)5.30.3-1962005

Notes

[buster] - perl <no-dsa> (Minor issue)
[stretch] - perl <no-dsa> (Minor issue)
https://github.com/perl/perl5/commit/66bbb51b93253a3f87d11c2695cfb7bdb782184a (v5.30.3)

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