USN-3102-1: Quagga vulnerabilities

13 October 2016

quagga vulnerabilities

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

  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


Several security issues were fixed in Quagga.

Software Description

  • quagga - BGP/OSPF/RIP routing daemon


It was discovered that Quagga incorrectly handled dumping data. A remote attacker could possibly use a large BGP packet to cause Quagga to crash, resulting in a denial of service. (CVE-2016-4049)

It was discovered that the Quagga package incorrectly set permissions on the configuration directory. A local user could use this issue to possibly obtain sensitive information. (CVE-2016-4036)

Update instructions

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

Ubuntu 16.04 LTS
quagga -
Ubuntu 14.04 LTS
quagga -
Ubuntu 12.04 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.