The ufs_lookup function in the Mac OS X 10.4.8 and FreeBSD 6.1 kernels allows local users to cause a denial of service (kernel panic) and possibly corrupt other filesystems by mounting a crafted UNIX File System (UFS) DMG image that contains a corrupted directory entry (struct direct), related to the ufs_dirbad function. NOTE: a third party states that the FreeBSD issue does not cross privilege boundaries.
docs.info.apple.com/article.html?artnum=305214
lists.apple.com/archives/security-announce/2007/Mar/msg00002.html
lists.freebsd.org/pipermail/freebsd-security/2007-January/004218.html
projects.info-pull.com/moab/MOAB-12-01-2007.html
secunia.com/advisories/23721
secunia.com/advisories/24479
www.osvdb.org/32686
www.securityfocus.com/bid/22036
www.securitytracker.com/id?1017751
www.us-cert.gov/cas/techalerts/TA07-072A.html
www.vupen.com/english/advisories/2007/0171
www.vupen.com/english/advisories/2007/0930