USN-3110-1: Quagga vulnerability

Ubuntu Security Notice USN-3110-1

25th October, 2016

quagga vulnerability

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

  • Ubuntu 16.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


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

Software description

  • quagga – BGP/OSPF/RIP routing daemon


David Lamparter discovered that Quagga incorrectly handled certain IPv6
router advertisements. A remote attacker could possibly use this issue 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 version:

Ubuntu 16.10:
quagga 1.0.20160315-2ubuntu0.1
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.



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