CVE-2021-28090 The advisory has been revoked - it doesn't affect any version of package tor (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2204-TOR-2777205
- published26 Apr 2021
- disclosed19 Mar 2021
Introduced: 19 Mar 2021
CVE-2021-28090 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:22.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tor package and not the tor package as distributed by Ubuntu.
Tor before 0.4.5.7 allows a remote attacker to cause Tor directory authorities to exit with an assertion failure, aka TROVE-2021-002.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-28090
- https://blog.torproject.org/node/2009
- https://bugs.torproject.org/tpo/core/tor/40316
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPDXB2GZHG3VNOTWSXQ3QZVHNV76WCU5/
- https://gitlab.torproject.org/tpo/core/tor/-/issues/40316
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPDXB2GZHG3VNOTWSXQ3QZVHNV76WCU5/
- https://security.gentoo.org/glsa/202107-25