| Name | CVE-2020-12723 |
| Description | regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | ELA-238-1 |
| Debian Bugs | 962005 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| perl (PTS) | jessie, jessie (lts) | 5.20.2-3+deb8u14 | fixed |
| stretch (security) | 5.24.1-3+deb9u5 | vulnerable |
| stretch (lts), stretch | 5.24.1-3+deb9u8 | fixed |
| buster, buster (lts) | 5.28.1-6+deb10u2 | fixed |
| bullseye | 5.32.1-4+deb11u3 | fixed |
| bullseye (security) | 5.32.1-4+deb11u4 | fixed |
| bookworm | 5.36.0-7+deb12u1 | fixed |
| sid, trixie | 5.40.0-7 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| perl | source | wheezy | (unfixed) | end-of-life | | |
| perl | source | jessie | 5.20.2-3+deb8u13 | | ELA-238-1 | |
| perl | source | stretch | 5.24.1-3+deb9u7 | | | |
| perl | source | buster | 5.28.1-6+deb10u1 | | | |
| perl | source | (unstable) | 5.30.3-1 | | | 962005 |
Notes
https://github.com/perl/perl5/commit/66bbb51b93253a3f87d11c2695cfb7bdb782184a (v5.30.3)