encryptfs-utils is vulnerable to denial of service. It was found that mount.ecryptfs_private did not handle certain errors correctly when updating the mtab (mounted file systems table) file, allowing a local attacker to corrupt the mtab file and possibly unmount an arbitrary file system.
lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html
www.ubuntu.com/usn/USN-1188-1
access.redhat.com/errata/RHSA-2011:1241
access.redhat.com/security/updates/classification/#moderate
access.redhat.com/support/offerings/techpreview/
bugzilla.redhat.com/show_bug.cgi?id=729465
launchpad.net/ecryptfs/+download