CVE-2020-16156

NameCVE-2020-16156
DescriptionCPAN 2.28 allows Signature Verification Bypass.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
perl (PTS)stretch5.24.1-3+deb9u7vulnerable
stretch (security)5.24.1-3+deb9u5vulnerable
buster5.28.1-6+deb10u1vulnerable
bullseye5.32.1-4+deb11u2vulnerable
bullseye (security)5.32.1-4+deb11u1vulnerable
bookworm, sid5.34.0-4vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
perlsource(unstable)(unfixed)

Notes

[bullseye] - perl <no-dsa> (Minor issue)
[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)

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