| Name | CVE-2017-12837 |
| Description | Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3982-1 |
| Debian Bugs | 875596 |
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 | fixed |
| 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.
Notes
[wheezy] - perl <not-affected> (Vulnerable code introduced after 5.14.4)
https://rt.perl.org/Public/Bug/Display.html?id=131582 (not yet public)
https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5
maint-5.26: https://perl5.git.perl.org/perl.git/commitdiff/66288bb3f44c8aa5122e5f40d8cfc0eada8b1695
maint-5.24: https://perl5.git.perl.org/perl.git/commitdiff/f7e5417e7bffba03947b66e4d8622d7c220f2876