CVE-2018-0490

HIGH

Tor < 0.2.9.14 - Denial of Service via Misformatted Relay Descriptor

Title source: llm
STIX 2.1

Description

An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_confirm
https://trac.torproject.org/projects/tor/ticket/25074
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4183

Scores

CVSS v3 7.5
EPSS 0.0273
EPSS Percentile 84.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (17)
debian/debian_linux 9.0
torproject/tor 0.3.1.1 alpha
torproject/tor 0.3.1.2 alpha
torproject/tor 0.3.1.3 alpha
torproject/tor 0.3.1.4 alpha
torproject/tor 0.3.1.5 alpha
torproject/tor 0.3.1.6 rc
torproject/tor 0.3.2.1 alpha
torproject/tor 0.3.2.2 alpha
torproject/tor 0.3.2.3 alpha
... and 7 more
Published Mar 05, 2018
Tracked Since Feb 18, 2026