CVE-2012-0255: Quagga

Medium severity, CVSS 5.0. EPSS: 3.5% chance of exploitation in the next 30 days.

The BGP implementation in bgpd in Quagga before 0.99.20.1 does not properly use message buffers for OPEN messages, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a message associated with a malformed Four-octet AS Number Capability (aka AS4 capability).

Affected products

• Quagga Quagga: up to and including 0.99.20; version 0.95 only; version 0.96 only; version 0.96.1 only; version 0.96.2 only; version 0.96.3 only; …

Published 2012-04-05. Last modified 2026-06-16.