Public Date:
802827: CVE-2012-0249 quagga (ospfd): Assertion failure due improper length check for a received LS-Update OSPF packet

The MITRE CVE dictionary describes this issue as:

Buffer overflow in the ospf_ls_upd_list_lsa function in ospf_packet.c in the OSPFv2 implementation in ospfd in Quagga before allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a Link State Update (aka LS Update) packet that is smaller than the length specified in its header.

Find out more about CVE-2012-0249 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


Red Hat would like to thank the CERT/CC for reporting this issue. The CERT/CC acknowledges Martin Winter at as the original reporter.