CVE-2021-28090

moderate-risk
Published 2021-03-19

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.

Do I need to act?

~
2.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (6)

Tor
Tor
Tor
Tor
Tor

Affected Vendors

Fedoraproject Torproject

References (10)

Release Notes https://blog.torproject.org/node/2009
Vendor Advisory https://bugs.torproject.org/tpo/core/tor/40316
Vendor Advisory https://gitlab.torproject.org/tpo/core/tor/-/issues/40316
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202107-25
Release Notes https://blog.torproject.org/node/2009
Vendor Advisory https://bugs.torproject.org/tpo/core/tor/40316
Vendor Advisory https://gitlab.torproject.org/tpo/core/tor/-/issues/40316
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/202107-25
39
/ 100
moderate-risk
Severity 21/34 · High
Exploitability 5/34 · Minimal
Exposure 13/34 · Low