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. 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.
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.
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.
Vulmon