USN-890-2: Python 2.5 vulnerabilities

Ubuntu Security Notice USN-890-2

21st January, 2010

python2.5 vulnerabilities

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

  • Ubuntu 9.10
  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software description

  • python2.5

Details

USN-890-1 fixed vulnerabilities in Expat. This update provides the
corresponding updates for the PyExpat module in Python 2.5.

Original advisory details:

Jukka Taimisto, Tero Rontti and Rauli Kaksonen discovered that Expat did
not properly process malformed XML. If a user or application linked against
Expat were tricked into opening a crafted XML file, an attacker could cause
a denial of service via application crash. (CVE-2009-2625, CVE-2009-3720)

It was discovered that Expat did not properly process malformed UTF-8
sequences. If a user or application linked against Expat were tricked into
opening a crafted XML file, an attacker could cause a denial of service via
application crash. (CVE-2009-3560)

Update instructions

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

Ubuntu 9.10:
python2.5-minimal 2.5.4-1ubuntu6.1
python2.5 2.5.4-1ubuntu6.1
Ubuntu 9.04:
python2.5-minimal 2.5.4-1ubuntu4.1
python2.5 2.5.4-1ubuntu4.1
Ubuntu 8.10:
python2.5-minimal 2.5.2-11.1ubuntu1.1
python2.5 2.5.2-11.1ubuntu1.1
Ubuntu 8.04 LTS:
python2.5-minimal 2.5.2-2ubuntu6.1
python2.5 2.5.2-2ubuntu6.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to restart any Python applications
that use the PyExpat module to effect the necessary changes.

References

CVE-2009-3560, CVE-2009-3720