Description
Buffer overflow in the Strcmp function in the XKEYBOARD extension in X Window System X11R6.4 and earlier, as used in SCO UnixWare 7.1.3 and Sun Solaris 8 through 10, allows local users to gain privileges via a long _XKB_CHARSET environment variable value.
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 4
- X11R6 < 6.4 XKEYBOARD (Solaris/SPARC) - Local Buffer Overflow (2) EDB-2360 · local · Sep 13, 2006 · verified
- X11R6 < 6.4 XKEYBOARD (Solaris/SPARC) - Local Buffer Overflow (1) EDB-2330 · local · Sep 8, 2006 · verified
- X11R6 < 6.4 XKEYBOARD (solaris x86) - Local Buffer Overflow EDB-2331 · local · Sep 8, 2006 · verified
- X11R6 < 6.4 XKEYBOARD (sco x86) - Local Buffer Overflow EDB-2332 · local · Sep 8, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- ADV-2006-3529 vdb-entry
- 19905 vdb-entry
- 102570 vendor-advisory
- 20060908 [RISE-2006001] X11R6 XKEYBOARD extension Strcmp() buffer overflow mailing-list
- 1016806 vdb-entry
- 21856 third-party-advisory
- ADV-2006-3525 vdb-entry
- oval:org.mitre.oval:def:1798 vdb-entry signature
- 21815 third-party-advisory
- 21993 third-party-advisory
- http://support.avaya.com/elmodocs2/security/ASA-2006-195.htm
- 1545 third-party-advisory
- 21845 third-party-advisory
- http://www.risesecurity.org/advisory/RISE-2006001.txt
- xorg-libx11-xkeyboard-bo(28820) vdb-entry