CVE-2003-1012

CVE-2003-1012 describes a denial-of-service vulnerability in Ethereal versions prior to 0.10.0, specifically within its SMB dissector. An unauthenticated remote attacker could exploit this by sending a malformed SMB packet, triggering a segmentation fault and crashing the application. While the CVSS score is 5.0 (medium severity) due to its network attack vector and low complexity, the impact is limited to availability. There is no evidence of active exploitation, nor are there known public exploits in Metasploit or ExploitDB, though it has garnered significant community discussion.