fusermount in fuse 2.8.5 and earlier does not perform a chdir to / before performing a mount or umount, which allows local users to unmount arbitrary directories via unspecified vectors.
http://www.openwall.com/lists/oss-security/2011/02/02/2
Published: 2011-09-02
Base Score: 3.3
Vector: CVSS2#AV:L/AC:M/Au:N/C:N/I:P/A:P
Severity: Low