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Debian Security Advisory DSA 3266-1 (fuse - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Tavis Ormandy discovered that FUSE, a Filesystem in USErspace, does not scrub the environment before executing mount or umount with elevated privileges. A local user can take advantage of this flaw to overwrite arbitrary files and gain elevated privileges by accessing debugging features via the environment that would not normally be safe for unprivileged users.
Affected Software
Affected Software
fuse on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (wheezy), this problem has been fixed in version 2.9.0-2+deb7u2. For the stable distribution (jessie), this problem has been fixed in version 2.9.3-15+deb8u1. For the testing distribution (stretch) and the unstable distribution (sid), this problem will be fixed soon. We recommend that you upgrade your fuse packages.