USN-2453-1: mime-support vulnerability

7 January 2015

mime-support 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


run-mailcap could be made to run programs as your login if it opened a specially crafted file.

Software Description

  • mime-support - MIME support programs


Timothy D. Morgan discovered that the run-mailcap tool incorrectly filtered certain shell metacharacters in filenames. If a user or automated system were tricked into opening a file with a specially-crafted filename, a remote attacker could possibly execute arbitrary code.

Update instructions

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

Ubuntu 14.10
mime-support - 3.55ubuntu1.1
Ubuntu 14.04 LTS
mime-support - 3.54ubuntu1.1
Ubuntu 12.04 LTS
mime-support - 3.51-1ubuntu1.1
Ubuntu 10.04 LTS
mime-support - 3.48-1ubuntu1.1

To update your system, please follow these instructions:

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