Description
Buffer overflow in the kernel in FreeBSD 7.3 through 9.0-RC1 allows local users to cause a denial of service (panic) or possibly gain privileges via a bind system call with a long pathname for a UNIX socket.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | kfreebsd-8 | 8.1+dfsg-8+squeeze2 | DSA-2325-1 |
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
- FreeBSD - UIPC socket heap Overflow (PoC) EDB-17908 · dos · Sep 30, 2011 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- DSA-2325-1 kfreebsd-8 - privilege escalation/denial of service Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://security.freebsd.org/patches/SA-11:05/unix2.patch
- 46202 third-party-advisory
- 17908 exploit
- FreeBSD-SA-11:05 vendor-advisory
- 46564 third-party-advisory
- 1026106 vdb-entry
- 75788 vdb-entry
- 49862 vdb-entry
- DSA-2325 vendor-advisory