Ubuntu Security Notice USN-775-1
12th May, 2009
quagga vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 9.04
- Ubuntu 8.10
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
Software description
- quagga
Details
It was discovered that the BGP service in Quagga did not correctly
handle certain AS paths containing 4-byte ASNs. An authenticated remote
attacker could exploit this flaw to cause bgpd to abort, leading to a
denial of service.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 9.04:
- quagga 0.99.11-1ubuntu0.1
- Ubuntu 8.10:
- quagga 0.99.9-6ubuntu0.1
- Ubuntu 8.04 LTS:
- quagga 0.99.9-2ubuntu1.2
- Ubuntu 6.06 LTS:
- quagga 0.99.2-1ubuntu3.5
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.