Ubuntu Security Notice USN-2566-1
9th April, 2015
dpkg vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary
dpkg could be tricked into bypassing source package signature checks.
Software description
- dpkg
– Debian package management system
Details
Jann Horn discovered that dpkg incorrectly validated signatures when
extracting local source packages. If a user or an automated system were
tricked into unpacking a specially crafted source package, a remote
attacker could bypass signature verification checks.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.10:
-
libdpkg-perl
1.17.13ubuntu1.1
- Ubuntu 14.04 LTS:
-
libdpkg-perl
1.17.5ubuntu5.4
- Ubuntu 12.04 LTS:
-
libdpkg-perl
1.16.1.2ubuntu7.6
- Ubuntu 10.04 LTS:
-
dpkg-dev
1.15.5.6ubuntu4.10
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.