PT-2024-10576 · Gentoo · Gentoo Portage

Kristian Fiskerstrand · Published 2024-01-12 · Updated 2024-01-22 · CVE-2016-20021

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Gentoo Portage versions prior to 3.0.47

Description The issue concerns missing PGP validation of executed code. Specifically, the standalone emerge-webrsync downloads a .gpgsig file but does not perform signature verification. This issue does not affect Portage unless emerge-webrsync is used.

Recommendations For Gentoo Portage versions prior to 3.0.47, update to version 3.0.47 or later to resolve the issue. As a temporary workaround, consider avoiding the use of emerge-webrsync until a patch is applied.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2016-20021

GHSA-PW5X-X5JW-CCMH

PYSEC-2024-10

Affected Products

Gentoo Portage

References · 13

• https://nvd.nist.gov/vuln/detail/CVE-2016-20021 · Security Note
• https://osv.dev/vulnerability/CVE-2016-20021 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2024-10 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-pw5x-x5jw-ccmh · Vendor Advisory
• https://bugs.gentoo.org/597800 · Patch
• https://github.com/gentoo/portage · Note
• https://github.com/gentoo/portage/commit/28cd240fb23d880b8641a058831c6762db71c3e2 · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/portage/PYSEC-2024-10.yaml · Note
• https://gitweb.gentoo.org/proj/portage.git/tree/NEWS · Note
• https://t.me/cvenotify/68223 · Telegram Post
• https://t.me/cvenotify/67783 · Telegram Post
• https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5b3c80502e96406b4b175e2ee79eb65f3f3cd9f6 · Note
• https://wiki.gentoo.org/wiki/Portage · Note