| Name | CVE-2020-16156 |
| Description | CPAN 2.28 allows Signature Verification Bypass. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3926-1, ELA-1226-1 |
| Debian Bugs | 1015985 |
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 | vulnerable |
| 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
[buster] - perl <no-dsa> (Minor issue)
[stretch] - perl <no-dsa> (Minor issue)
https://blog.hackeriet.no/cpan-signature-verification-vulnerabilities/
http://blogs.perl.org/users/neilb/2021/11/addressing-cpan-vulnerabilities-related-to-checksums.html
https://bugzilla.redhat.com/show_bug.cgi?id=2035273
https://github.com/andk/cpanpm/commit/b27c51adf0fda25dee84cb72cb2b1bf7d832148c (2.29)
https://github.com/andk/cpanpm/commit/bcbf6d608e48d25306ecfd273118b4d6ba1c5df6 (2.29)
https://github.com/andk/cpanpm/commit/46fe910becd5746adca92e18660567c9e8d37eb5 (2.29)
https://github.com/andk/cpanpm/commit/7f9e5e8c52f535c1c13e177595a5ef4710c72058 (2.29)
https://github.com/andk/cpanpm/commit/c03257dbebccd4deeff1987d5efd98113643f717 (2.29)
https://github.com/andk/cpanpm/commit/7d4d5e32bcd9b75f7bf70a395938a48ca4a06d25 (2.33-TRIAL)
https://github.com/andk/cpanpm/commit/89b13baf1d46e4fb10023af30ef305efec4fd603 (2.33-TRIAL)