Ubuntu Security Notice USN-2617-1
21st May, 2015
fuse vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 15.04
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
FUSE could be made to overwrite files as the administrator.
Software description
- fuse
– Filesystem in Userspace
Details
Tavis Ormandy discovered that FUSE incorrectly filtered environment
variables. A local attacker could use this issue to gain administrative
privileges.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 15.04:
-
fuse
2.9.2-4ubuntu4.15.04.1
- Ubuntu 14.10:
-
fuse
2.9.2-4ubuntu4.14.10.1
- Ubuntu 14.04 LTS:
-
fuse
2.9.2-4ubuntu4.14.04.1
- Ubuntu 12.04 LTS:
-
fuse
2.8.6-2ubuntu2.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.