USN-2242-1: dpkg vulnerabilities
10 June 2014
dpkg vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary
A malicious source package could write files outside the unpack directory.
Software Description
- dpkg - Debian package management system
Details
It was discovered that dpkg incorrectly handled certain patches when unpacking source packages. If a user or an automated system were tricked into unpacking a specially crafted source package, a remote attacker could modify files outside the target unpack directory, leading to a denial of service or potentially gaining access to the system.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 LTS
- libdpkg-perl - 1.17.5ubuntu5.3
- Ubuntu 13.10
- libdpkg-perl - 1.16.12ubuntu1.3
- Ubuntu 12.04 LTS
- libdpkg-perl - 1.16.1.2ubuntu7.5
- Ubuntu 10.04 LTS
- dpkg-dev - 1.15.5.6ubuntu4.9
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.