CVEvulnerability

CVE-2015-2689

7.5 HIGH Published 2020-01-24 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-01-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-20

Description

Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.

Affected configurations

• torproject tor (< 0.2.4.26) • torproject tor (>= 0.2.5.1 < 0.2.5.11)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References