Description
Operating systems with shared memory implementations based on BSD 4.4 code allow a user to conduct a denial of service and bypass memory limits (e.g., as specified with rlimits) using mmap or shmget to allocate memory and cause page faults.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- BSD/Linux Kernel 2.3 (BSD/OS 4.0 / FreeBSD 3.2 / NetBSD 1.4) - Shared Memory Denial of Service EDB-19423 · dos · Jul 15, 1999 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 526 vdb-entry
- 19990715 Shared memory DoS's mailing-list
- bsd-shared-memory-dos(2351) vdb-entry