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
Published Jan 12, 2024
8.1
HIGHCVSS 4.0
EPSS 0.47%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed May 9, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.47% (0.00468) | 38.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.46% (0.00464) | 36.47th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00039) | 8.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00073) | 33.76th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.06% (0.00063) | 27.50th | v3 (v2023.03.01) |
| Jan 23, 2024 | 0.06% (0.00063) | 25.49th | v3 (v2023.03.01) |
| Jan 17, 2024 | 0.04% (0.00045) | 12.17th | v3 (v2023.03.01) |
References (8)
- https://bugs.gentoo.org/597800 Issue TrackingPatch
- https://github.com/advisories/GHSA-pw5x-x5jw-ccmh Advisory
- https://github.com/gentoo/portage/commit/28cd240fb23d880b8641a058831c6762db71c3e2
- https://github.com/pypa/advisory-database/tree/main/vulns/portage/PYSEC-2024-10.yaml
- https://gitweb.gentoo.org/proj/portage.git/tree/NEWS Release Notes
- https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5b3c80502e96406b4b175e2ee79eb65f3f3cd9f6
- https://nvd.nist.gov/vuln/detail/CVE-2016-20021
- https://wiki.gentoo.org/wiki/Portage Product
Change history (0)
No recorded changes yet.