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USN-1441-1: Quagga vulnerabilities

15 May 2012

Quagga could be made to crash if it received specially crafted network traffic.

Releases

Packages

  • quagga - BGP/OSPF/RIP routing daemon

Details

It was discovered that Quagga incorrectly handled Link State Update
messages with invalid lengths. A remote attacker could use this flaw to
cause Quagga to crash, resulting in a denial of service. (CVE-2012-0249,
CVE-2012-0250)

It was discovered that Quagga incorrectly handled messages with a malformed
Four-octet AS Number Capability. A remote attacker could use this flaw to
cause Quagga to crash, resulting in a denial of service. (CVE-2012-0255)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04
Ubuntu 11.10
Ubuntu 11.04
Ubuntu 10.04

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart Quagga to make
all the necessary changes.