CVE-1999-1518

CVE-1999-1518 describes a denial-of-service vulnerability in operating systems utilizing BSD 4.4 shared memory implementations, including FreeBSD and NetBSD. An unauthenticated attacker can exploit this by using mmap or shmget to allocate excessive memory and trigger page faults, bypassing rlimit memory restrictions. With a CVSS score of 5.0 (Medium), this vulnerability is remotely exploitable with low attack complexity, leading to a partial availability impact. While there is an ExploitDB entry (EDB-19423) detailing a denial-of-service exploit, there is no evidence of active exploitation, Metasploit modules, or significant community discussion.