fuse 2.8.5 and earlier does not properly handle when /etc/mtab cannot be updated, which allows local users to unmount arbitrary directories via a symlink attack.Referenceshttp://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse%3Ba=commit%3Bh=bf5ffb5fd8558bd799791834def431c0cee5a11fhttp://www.openwall.com/lists/oss-security/2011/02/02/2http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.htmlhttp://www.openwall.com/lists/oss-security/2011/02/03/5http://www.openwall.com/lists/oss-security/2011/02/08/4
