USN-3102-1: Quagga vulnerabilities

Ubuntu Security Notice USN-3102-1

13th 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 version:

Ubuntu 16.04 LTS:
Ubuntu 14.04 LTS:
Ubuntu 12.04 LTS:

To update your system, please follow these instructions:

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


CVE-2016-4036, CVE-2016-4049

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