It was discovered that Apache"s mod_cache and mod_dav modules incorrectly handled requests that lacked a path. A remote attacker could exploit this with a crafted request and cause a denial of service. This issue affected Ubuntu 6.06 LTS, 8.04 LTS, 9.10 and 10.04 LTS. It was discovered that Apache did not properly handle memory when destroying APR buckets. A remote attacker could exploit this with crafted requests and cause a denial of service via memory exhaustion. This issue affected Ubuntu 6.06 LTS and 10.10