Description
Buffer overflow in kern/uipc_mbuf2.c in OpenBSD 3.9 and 4.0 allows remote attackers to execute arbitrary code via fragmented IPv6 packets due to "incorrect mbuf handling for ICMP6 packets." NOTE: this was originally reported as a denial of service.
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
- OpenBSD 3.x/4.x - ICMPv6 Packet Handling Remote Buffer Overflow EDB-29725 · remote · Mar 9, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- VU#986425 third-party-advisory
- 1017735 vdb-entry
- [source-changes] 20070226 CVS: cvs.openbsd.org: src mailing-list
- http://www.coresecurity.com/?action=item&id=1703
- 33050 vdb-entry
- [4.0] 010: SECURITY FIX: March 7, 2007 vendor-advisory
- 1017744 vdb-entry
- [3.9] 020: SECURITY FIX: March 7, 2007 vendor-advisory
- 22901 vdb-entry
- 24490 third-party-advisory