CVE-2008-3531
Stack-based buffer overflow in sys/kern/vfs_mount.c in the kernel in FreeBSD 7.0 and 7.1, when vfs.usermount is enabled, allows local users to gain privileges via a crafted (1) mount or (2) nmount system call, related to copying of "user defined data" in "certain error conditions."
Date published : 2008-09-05
http://www.securityfocus.com/bid/31002
http://security.FreeBSD.org/advisories/FreeBSD-SA-08:08.nmount.asc