Vulnerability Description
Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Torproject | Tor | < 0.3.5.14 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://blog.torproject.org/node/2009Release NotesVendor Advisory
- https://gitlab.torproject.org/tpo/core/tor/-/issues/40304Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202107-25Third Party Advisory
- https://blog.torproject.org/node/2009Release NotesVendor Advisory
- https://gitlab.torproject.org/tpo/core/tor/-/issues/40304Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202107-25Third Party Advisory
FAQ
What is CVE-2021-28089?
CVE-2021-28089 is a vulnerability with a CVSS score of 7.5 (HIGH). Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001.
How severe is CVE-2021-28089?
CVE-2021-28089 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-28089?
Check the references section above for vendor advisories and patch information. Affected products include: Torproject Tor, Fedoraproject Fedora.