USN-2820-1: dpkg vulnerability

Ubuntu Security Notice USN-2820-1

26th November, 2015

dpkg vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 15.10
  • Ubuntu 15.04
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


dpkg-deb could be made to crash or run programs as your login if it opened a specially crafted file.

Software description

  • dpkg - Debian package management system


Hanno Boeck discovered that the dpkg-deb tool incorrectly handled certain
old style Debian binary packages. If a user or an automated system were
tricked into unpacking a specially crafted binary package, a remote
attacker could possibly use this issue to execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 15.10:
dpkg 1.18.2ubuntu5.1
Ubuntu 15.04:
dpkg 1.17.25ubuntu1.1
Ubuntu 14.04 LTS:
dpkg 1.17.5ubuntu5.5
Ubuntu 12.04 LTS:

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.