CVE Vulnerability

CVE-2021-28089

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://gitlab.torproject.org/tpo/core/tor/-/issues/40304 Vendor Advisory
https://blog.torproject.org/node/2009 Release Notes Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPDXB2GZHG3VNOTWSXQ3QZVHNV76WCU5/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202107-25 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:torproject:tor:0.4.4.1:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.4.4.0:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.4.4.2:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:0.4.4.3:alpha:*:*:*:*:*:*
cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Information

Published : 2021-03-19 05:15

Updated : 2022-05-16 09:06

NVD link : CVE-2021-28089

Mitre link : CVE-2021-28089

Products Affected
No products.
CWE
CWE-400