Ubuntu Security Notice USN-516-1
20th September, 2007
xfsdump vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 7.04
- Ubuntu 6.10
- Ubuntu 6.06 LTS
Software description
- xfsdump
Details
Paul Martin discovered that xfs_fsr creates a temporary directory
with insecure permissions. This allows a local attacker to exploit a
race condition in xfs_fsr to read or overwrite arbitrary files on xfs
filesystems.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 7.04:
- xfsdump 2.2.38-1ubuntu0.7.04.1
- Ubuntu 6.10:
- xfsdump 2.2.38-1ubuntu0.6.10.1
- Ubuntu 6.06 LTS:
- xfsdump 2.2.30-1ubuntu0.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.