CVE-2021-28089
HIGHTor < 0.4.5.7 - Uncontrolled Resource Consumption via Directory Protocol
Title source: llmDescription
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.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_misc
https://gitlab.torproject.org/tpo/core/tor/-/issues/40304
Release Notes, Vendor Advisory x_refsource_confirm
https://blog.torproject.org/node/2009
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPDXB2GZHG3VNOTWSXQ3QZVHNV76WCU5/
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202107-25
Scores
CVSS v3
7.5
EPSS
0.0167
EPSS Percentile
73.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-400
Status
published
Products (6)
fedoraproject/fedora
33
torproject/tor
0.4.4.0 alpha
torproject/tor
0.4.4.1 alpha
torproject/tor
0.4.4.2 alpha
torproject/tor
0.4.4.3 alpha
torproject/tor
< 0.3.5.14
Published
Mar 19, 2021
Tracked Since
Feb 18, 2026