USN-806-1: Python vulnerabilities

23 July 2009

python2.4, python2.5 vulnerabilities

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

  • Ubuntu 8.10
  • Ubuntu 8.04 LTS
  • Ubuntu 6.06 LTS

Software Description

  • python2.4
  • python2.5


It was discovered that Python incorrectly handled certain arguments in the imageop module. If an attacker were able to pass specially crafted arguments through the crop function, they could execute arbitrary code with user privileges. For Python 2.5, this issue only affected Ubuntu 8.04 LTS. (CVE-2008-4864)

Multiple integer overflows were discovered in Python’s stringobject and unicodeobject expandtabs method. If an attacker were able to exploit these flaws they could execute arbitrary code with user privileges or cause Python applications to crash, leading to a denial of service. (CVE-2008-5031)

Update instructions

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

Ubuntu 8.10
python2.4 - 2.4.5-5ubuntu1.1
python2.4-minimal - 2.4.5-5ubuntu1.1
Ubuntu 8.04 LTS
python2.4 - 2.4.5-1ubuntu4.2
python2.4-minimal - 2.4.5-1ubuntu4.2
python2.5 - 2.5.2-2ubuntu6
python2.5-minimal - 2.5.2-2ubuntu6
Ubuntu 6.06 LTS
python2.4 - 2.4.3-0ubuntu6.3
python2.4-minimal - 2.4.3-0ubuntu6.3

To update your system, please follow these instructions:

After a standard system upgrade you need to reboot your computer to effect the necessary changes.