CVE-2021-34548
HIGHTor < 0.3.5.15 - Authentication Bypass via Forged RELAY_END or RELAY_RESOLVED
Title source: llmDescription
An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-003. An attacker can forge RELAY_END or RELAY_RESOLVED to bypass the intended access control for ending a stream.
References (4)
Core 4
Core References
Broken Link x_refsource_misc
https://gitlab.torproject.org/tpo/core/tor/-/issues/40389
Release Notes, Vendor Advisory x_refsource_confirm
https://blog.torproject.org/node/2041
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202107-25
Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/163510/Tor-Half-Closed-Connection-Stream-Confusion.html
Scores
CVSS v3
7.5
EPSS
0.0272
EPSS Percentile
84.1%
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-290
Status
published
Products (1)
torproject/tor
< 0.3.5.15
Published
Jun 29, 2021
Tracked Since
Feb 18, 2026