{"id":"CVE-2003-1580","details":"The Apache HTTP Server 2.0.44, when DNS resolution is enabled for client IP addresses, uses a logging format that does not identify whether a dotted quad represents an unresolved IP address, which allows remote attackers to spoof IP addresses via crafted DNS responses containing numerical top-level domains, as demonstrated by a forged 123.123.123.123 domain name, related to an \"Inverse Lookup Log Corruption (ILLC)\" issue.","modified":"2026-04-10T03:35:38.887369Z","published":"2010-02-05T22:30:02Z","references":[{"type":"EVIDENCE","url":"http://www.securityfocus.com/archive/1/313867"}],"schema_version":"1.7.5"}