CVE-2016-20021
First published: Fri Jan 12 2024(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Gentoo Portage | <3.0.47 | |
| pip/portage | >=0<3.0.47 | 3.0.47 |
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Reference Links
- https://bugs.gentoo.org/597800
- https://gitweb.gentoo.org/proj/portage.git/tree/NEWS
- https://wiki.gentoo.org/wiki/Portage
- https://nvd.nist.gov/vuln/detail/CVE-2016-20021
- 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/repo/gentoo.git/commit/?id=5b3c80502e96406b4b175e2ee79eb65f3f3cd9f6
- https://github.com/advisories/GHSA-pw5x-x5jw-ccmh (Advisory)
Frequently Asked Questions
What is the severity of CVE-2016-20021?
CVE-2016-20021 has a severity rating that indicates a potential risk due to the lack of PGP validation in Gentoo Portage.
How do I fix CVE-2016-20021?
To fix CVE-2016-20021, upgrade your Gentoo Portage installation to version 3.0.47 or later.
What systems are affected by CVE-2016-20021?
CVE-2016-20021 affects Gentoo Portage versions prior to 3.0.47 when using the emerge-webrsync command.
Is CVE-2016-20021 a critical vulnerability?
CVE-2016-20021 is not classified as a critical vulnerability, but it does pose risks if not addressed.
What does CVE-2016-20021 involve?
CVE-2016-20021 involves a missing PGP validation in Gentoo Portage's emerge-webrsync, which could lead to executing unverified code.
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