Upstream information

CVE-2021-34549 at MITRE

Description

An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-005. Hashing is mishandled for certain retrieval of circuit data. Consequently. an attacker can trigger the use of an attacker-chosen circuit ID to cause algorithm inefficiency.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
CVSS detail National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1187324 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15 SP2
  • tor >= 0.4.5.9-bp152.2.12.1
 Patchnames:
openSUSE-2021-941
SUSE Package Hub 15 SP3
  • tor >= 0.4.5.9-bp153.2.3.1
 Patchnames:
openSUSE-2021-989
openSUSE Leap 15.2
  • tor >= 0.4.5.9-lp152.2.12.1
 Patchnames:
openSUSE-2021-926
openSUSE Leap 15.3
  • tor >= 0.4.5.9-bp153.2.3.1
 Patchnames:
openSUSE-2021-989
openSUSE Tumbleweed
  • tor >= 0.4.6.7-2.2
 Patchnames:
openSUSE-Tumbleweed-2024-11469

SUSE Timeline for this CVE

CVE page created: Mon Jun 14 22:42:41 2021
CVE page last modified: Mon Oct 6 19:30:39 2025