CVE-2016-20021

State: Published
Severity: 9.8 Critical
Published: Jan 12, 2024
Updated: Jun 3, 2025
Reserved: Jan 12, 2024

Description

In Gentoo Portage before 3.0.47, there is missing PGP validation of executed code: the standalone emerge-webrsync downloads a .gpgsig file but does not perform signature verification. Unless emerge-webrsync is used, Portage is not vulnerable.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://wiki.gentoo.org/wiki/Portage
https://gitweb.gentoo.org/proj/portage.git/tree/NEWS
https://bugs.gentoo.org/597800

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