USN-664-1: Tk vulnerability

Ubuntu Security Notice USN-664-1

6th November, 2008

tk8.0, tk8.3, tk8.4 vulnerability

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

  • Ubuntu 8.04 LTS
  • Ubuntu 7.10
  • Ubuntu 6.06 LTS

Software description

  • tk8.0
  • tk8.3
  • tk8.4


It was discovered that Tk could be made to overrun a buffer when loading
certain images. If a user were tricked into opening a specially crafted
GIF image, remote attackers could cause a denial of service or execute
arbitrary code with user privileges.

Update instructions

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

Ubuntu 8.04 LTS:
tk8.4 8.4.16-2ubuntu1.1
Ubuntu 7.10:
tk8.4 8.4.15-1ubuntu1.1
tk8.3 8.3.5-6ubuntu3.1
Ubuntu 6.06 LTS:
tk8.4 8.4.12-0ubuntu1.2
tk8.3 8.3.5-4ubuntu1.2
tk8.0 8.0.5-11ubuntu0.1

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the
necessary changes.