https://bugzilla.redhat.com/show_bug.cgi?id=2035341
Bug ID: 2035341
Summary: CVE-2020-16154 perl-App-cpanminus: signature
verification bypass
Product: Security Response
Hardware: All
OS: Linux
Status: NEW
Component: vulnerability
Keywords: Security
Severity: medium
Priority: medium
Assignee: security-response-t...@redhat.com
Reporter: mre...@redhat.com
CC: hho...@redhat.com, jor...@redhat.com,
jples...@redhat.com, mmasl...@redhat.com,
mspa...@redhat.com,
perl-devel@lists.fedoraproject.org,
perl-maint-l...@redhat.com
Target Milestone: ---
Classification: Other
An attacker can prepend checksums for modified packages to the beginning of
CHECKSUMS files, before the cleartext PGP headers. This makes the
Module::Signature::_verify() checks in both cpan and cpanm pass.
External Reference:
https://blog.hackeriet.no/cpan-signature-verification-vulnerabilities/
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https://bugzilla.redhat.com/show_bug.cgi?id=2035341
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