Vulnerabilities
Misconfiguration
Compliance
Cryptography
CVE Vulnerabilities

CVE-2020-16156

Improper Verification of Cryptographic Signature

Published: Dec 13, 2021 | Modified: Jun 17, 2026
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
7.8 MODERATE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-16156
CWEhttps://cwe.mitre.org/data/definitions/347.html

CPAN 2.28 allows Signature Verification Bypass.

Weakness

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Affected Software

NameVendorStart VersionEnd Version
Comprehensive_perl_archive_networkPerl2.28 (including)2.28 (including)
Comprehensive_perl_archive_networkPerl2.28-trial (including)2.28-trial (including)
Red Hat Enterprise Linux 8RedHatperl-CPAN-0:2.18-402.el8_10*
PerlUbuntubionic*
PerlUbuntuesm-infra-legacy/trusty*
PerlUbuntuesm-infra-legacy/xenial*
PerlUbuntuesm-infra/bionic*
PerlUbuntuesm-infra/focal*
PerlUbuntuesm-infra/xenial*
PerlUbuntufocal*
PerlUbuntuhirsute*
PerlUbuntuimpish*
PerlUbuntujammy*
PerlUbuntukinetic*
PerlUbuntulunar*
PerlUbuntutrusty*
PerlUbuntutrusty/esm*
PerlUbuntuupstream*
PerlUbuntuxenial*

References

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