USN-529-1: Tk vulnerability

11 October 2007

tk8.3, tk8.4 vulnerability

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

  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description

  • 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 versions:

Ubuntu 7.04
tk8.3 - 8.3.5-6ubuntu2.1
tk8.4 - 8.4.14-0ubuntu2.1
Ubuntu 6.10
tk8.3 - 8.3.5-6ubuntu1.1
tk8.4 - 8.4.12-1ubuntu0.1
Ubuntu 6.06 LTS
tk8.3 - 8.3.5-4ubuntu1.1
tk8.4 - 8.4.12-0ubuntu1.1

To update your system, please follow these instructions:

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