It was discovered that Quagga incorrectly handled certain Outbound Route Filtering records. A remote authenticated attacker could use this flaw to cause a denial of service or potentially execute arbitrary code. The default compiler options for Ubuntu 8.04 LTS and later should reduce the vulnerability to a denial of service. It was discovered that Quagga incorrectly parsed certain AS paths. A remote attacker could use this flaw to cause Quagga to crash, resulting in a denial of service