CVE-2016-20021

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-347

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bugs.gentoo.org/597800Issue Tracking, Patch
https://gitweb.gentoo.org/proj/portage.git/tree/NEWSRelease Notes
https://wiki.gentoo.org/wiki/PortageProduct
https://bugs.gentoo.org/597800Issue Tracking, Patch
https://gitweb.gentoo.org/proj/portage.git/tree/NEWSRelease Notes
https://wiki.gentoo.org/wiki/PortageProduct

Timeline

Published: Jan 12, 2024
Last modified: Jun 17, 2026
NVD status: Modified

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