Descriptionfusermount 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.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
NVD severitylow (attack range: local)
Debian Bugs624551
Debian/oldoldstablepackage fuse is vulnerable.
Debian/oldstablenot vulnerable.
Debian/stablenot vulnerable.
Debian/testingnot vulnerable.
Debian/unstablenot vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
fuse (PTS)squeeze2.8.4-1.1vulnerable
squeeze (lts)2.8.4-1.1+deb6u1vulnerable
wheezy (security), wheezy2.9.0-2+deb7u2fixed
jessie (security), jessie2.9.3-15+deb8u1fixed
stretch, sid2.9.4-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[squeeze] - fuse <no-dsa> (Minor issue)

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