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Ubuntu Security Notice USN-2183-1
April 28, 2014
dpkg vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 14.04 LTS
– Ubuntu 13.10
– Ubuntu 12.10
– 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:
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 LTS:
libdpkg-perl 1.17.5ubuntu5.1
Ubuntu 13.10:
libdpkg-perl 1.16.12ubuntu1.1
Ubuntu 12.10:
libdpkg-perl 1.16.7ubuntu6.1
Ubuntu 12.04 LTS:
libdpkg-perl 1.16.1.2ubuntu7.3
Ubuntu 10.04 LTS:
dpkg-dev 1.15.5.6ubuntu4.7
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2183-1
CVE-2014-0471
Package Information:
https://launchpad.net/ubuntu/+source/dpkg/1.17.5ubuntu5.1
https://launchpad.net/ubuntu/+source/dpkg/1.16.12ubuntu1.1
https://launchpad.net/ubuntu/+source/dpkg/1.16.7ubuntu6.1
https://launchpad.net/ubuntu/+source/dpkg/1.16.1.2ubuntu7.3
https://launchpad.net/ubuntu/+source/dpkg/1.15.5.6ubuntu4.7
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