View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2011-0542 medium priority: Ubuntu including 1 source packages (fuse), 6 status rows across 6 suites (dapper, hardy, karmic, lucid, maverick, upstream): released 4, ignored 1, needs-triage 1.
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.