VULNERABILITY INTELLIGENCE

CVE-2016-20021

CVSS score9.8 CRITICAL
EPSS probability0.47%
CISA KEVNot currently listed
Published2024-01-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • CWE-347: Improper Verification of Cryptographic Signature

Primary references