Full Disclosure mailing list archives
Re: FreeBSD <= 6.1 kqueue() NULL pointer dereference
From: Przemyslaw Frasunek <venglin () freebsd lublin pl>
Date: Mon, 24 Aug 2009 13:49:47 +0200
FreeBSD <= 6.1 suffers from classical check/use race condition on SMP systems in kevent() syscall
[...] In fact, the same bug affects most recent version of DragonFlyBSD and NetBSD, but it seems to be not-exploitable due to mutexes. In case of NetBSD, exploitation attempt causes kernel-mode deadlock, therefore process is unkillable (even with SIGKILL) until reboot, which can lead to DoS. -- * Fido: 2:480/124 ** WWW: http://www.frasunek.com ** NICHDL: PMF9-RIPE * * Jabber ID: venglin () czuby pl ** PGP ID: 2578FCAD ** HAM-RADIO: SQ5JIV * _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- FreeBSD <= 6.1 kqueue() NULL pointer dereference Przemyslaw Frasunek (Aug 22)
- Re: FreeBSD <= 6.1 kqueue() NULL pointer dereference Przemyslaw Frasunek (Aug 24)