VulnerabilityModified
CVE-2016-20021
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.
CRITICAL 9.8EPSS 0.47%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.47% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- gentoo/portage
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.