CVE-2013-2145

Severity: medium (CVSS 4.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-08-19 · updated 2026-06-16
Weakness: CWE-20

Description

The cpansign verify functionality in the Module::Signature module before 0.72 for Perl allows attackers to bypass the signature check and execute arbitrary code via a SIGNATURE file with a "special unknown cipher" that references an untrusted module in Digest/.

Affected products

Canonical Ubuntu Linux: 12.04, 12.10, 13.04
Opensuse: 11.4, 12.2, 12.3
Perlmonks Module::Signature: through 0.72; 0.70, 0.71

References

http://lists.opensuse.org/opensuse-updates/2013-07/msg00039.html
http://lists.opensuse.org/opensuse-updates/2013-07/msg00043.html
http://www.openwall.com/lists/oss-security/2013/06/05/16
http://www.securityfocus.com/bid/60352
http://www.ubuntu.com/usn/USN-1896-1
https://bugzilla.redhat.com/show_bug.cgi?id=971096
https://github.com/audreyt/module-signature/commit/575f7bd6ba4cc7c92f841e8758f88a131674ebf2
https://github.com/audreyt/module-signature/commit/cbd06b392a73c63159dc5c20ff5b3c8fc88c4896
http://lists.opensuse.org/opensuse-updates/2013-07/msg00039.html
http://lists.opensuse.org/opensuse-updates/2013-07/msg00043.html
http://www.openwall.com/lists/oss-security/2013/06/05/16
http://www.securityfocus.com/bid/60352

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