USN-1605-1: Quagga vulnerability

11 October 2012

quagga vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.04 LTS


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

Software Description

  • quagga - BGP/OSPF/RIP routing daemon


It was discovered that Quagga incorrectly handled certain malformed messages. A remote attacker could use this flaw to cause Quagga to crash, resulting in a denial of service.

Update instructions

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

Ubuntu 12.04 LTS
quagga -
Ubuntu 11.10
quagga -
Ubuntu 11.04
quagga -
Ubuntu 10.04 LTS
quagga -

To update your system, please follow these instructions:

After a standard system update you need to restart Quagga to make all the necessary changes.