The PGP signature parsing in Module::Signature before 0.74 allows remote attackers to cause the unsigned portion of a SIGNATURE file to be treated as the signed portion via unspecified vectors.
https://github.com/audreyt/module-signature/commit/8a9164596fa5952d4fbcde5aa1c7d1c7bc85372f
http://www.openwall.com/lists/oss-security/2015/04/23/17
http://www.openwall.com/lists/oss-security/2015/04/07/1
http://ubuntu.com/usn/usn-2607-1
https://metacpan.org/changes/distribution/Module-Signature
Source: Mitre, NVD
Published: 2019-11-29
Updated: 2019-12-16
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: High
EPSS: 0.00561