1. Ubuntu Security Notices
  2. USN-1441-1

USN-1441-1: Quagga vulnerabilities

Publication date

15 May 2012

Overview

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)

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

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.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
12.04 precise quagga –  0.99.20.1-0ubuntu0.12.04.2
11.10 oneiric quagga –  0.99.20.1-0ubuntu0.11.10.2
11.04 natty quagga –  0.99.20.1-0ubuntu0.11.04.2
10.04 lucid quagga –  0.99.20.1-0ubuntu0.10.04.2

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References

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