Ubuntu Update for Linux kernel vulnerabilities USN-512-1
Please Install the Updated Packages.
It was discovered that Quagga did not correctly verify OPEN messages or COMMUNITY attributes sent from configured peers. Malicious authenticated remote peers could send a specially crafted message which would cause bgpd to abort, leading to a denial of service.
quagga vulnerability on Ubuntu 6.06 LTS , Ubuntu 6.10 , Ubuntu 7.04