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USN-2183-1: dpkg vulnerability

28 April 2014

A malicious source package could write files outside the unpack directory.

Releases

Packages

  • dpkg - Debian package management system

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-2183-2: dselect, dpkg, libdpkg-dev, dpkg-dev, libdpkg-perl