Bug#1015985: perl: CVE-2020-16156

[Moritz Mühlenhoff]

Source: perl
X-Debbugs-CC: team at security.debian.org
Severity: normal
Tags: security

Hi,

The following vulnerability was published for perl.

CVE-2020-16156[0]:
| CPAN 2.28 allows Signature Verification Bypass.

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

Patches:	
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)

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2020-16156
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16156

Please adjust the affected versions in the BTS as needed.