USN-2183-2: dpkg vulnerability
1 May 2014
A malicious source package could write files outside the unpack directory.
Releases
Packages
- dpkg - Debian package management system
Details
USN-2183-1 fixed a vulnerability in dpkg. Javier Serrano Polo discovered
that the fix introduced a vulnerability in releases with an older version
of the patch utility. This update fixes the problem.
Original advisory details:
Jakub Wilk discovered that dpkg incorrectly certain paths and symlinks 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
Ubuntu 13.10
Ubuntu 12.10
Ubuntu 12.04
Ubuntu 10.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-2183-1: libdpkg-dev, dselect, libdpkg-perl, dpkg, dpkg-dev