USN-890-2: Python 2.5 vulnerabilities

Releases

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

Packages

• 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 versions:

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

• python2.5-minimal - 2.5.2-2ubuntu6.1
• python2.5 - 2.5.2-2ubuntu6.1

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

Related notices

• USN-890-6: cmake
• USN-890-1: lib64expat1, expat, libexpat1, libexpat1-udeb
• USN-890-4: python2.4-xml, python-xml
• USN-890-3: python2.4-minimal, python2.4
• USN-890-5: xmlrpc-c, libxmlrpc-core-c3