Public Date:
738398: CVE-2011-3326 Quagga (ospfd): Denial of service by decoding Link State Update LSAs of unknown type

The MITRE CVE dictionary describes this issue as:

The ospf_flood function in ospf_flood.c in ospfd in Quagga before 0.99.19 allows remote attackers to cause a denial of service (daemon crash) via an invalid Link State Advertisement (LSA) type in an IPv4 Link State Update message.

Find out more about CVE-2011-3326 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 2.9
Base Metrics AV:A/AC:M/Au:N/C:N/I:N/A:P
Access Vector Adjacent Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (quagga) RHSA-2012:1259 2012-09-12
Red Hat Enterprise Linux version 5 (quagga) RHSA-2012:1258 2012-09-12

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 4 quagga Affected


Red Hat would like to thank CERT-FI for reporting this issue. CERT-FI acknowledges Riku Hietamäki, Tuomo Untinen and Jukka Taimisto of the Codenomicon CROSS project as the original reporters.