Ubuntu Security Notice USN-1045-2
19th January, 2011
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 9.10
- Ubuntu 8.04 LTS
USN-1045-1 fixed vulnerabilities in FUSE. This update to util-linux adds
support for new options required by the FUSE update.
Original advisory details:
It was discovered that FUSE could be tricked into incorrectly updating the
mtab file when mounting filesystems. A local attacker, with access to use
FUSE, could unmount arbitrary locations, leading to a denial of service.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 10.10:
- mount 2.17.2-0ubuntu22.214.171.124
- Ubuntu 10.04 LTS:
- mount 2.17.2-0ubuntu1.10.04.1
- Ubuntu 9.10:
- mount 2.16-1ubuntu5.1
- Ubuntu 8.04 LTS:
- mount 2.13.1-5ubuntu3.1
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.