USN-1441-1: Quagga vulnerabilities

15 May 2012

quagga vulnerabilities

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

Summary

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

Software Description

  • 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 LTS
quagga - 0.99.20.1-0ubuntu0.12.04.2
Ubuntu 11.10
quagga - 0.99.20.1-0ubuntu0.11.10.2
Ubuntu 11.04
quagga - 0.99.20.1-0ubuntu0.11.04.2
Ubuntu 10.04 LTS
quagga - 0.99.20.1-0ubuntu0.10.04.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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.

References