USN-890-1: Expat vulnerabilities

Ubuntu Security Notice USN-890-1

20th January, 2010

expat 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
  • Ubuntu 6.06 LTS

Software description

  • expat

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:
lib64expat1 2.0.1-4ubuntu1.1
libexpat1-udeb 2.0.1-4ubuntu1.1
libexpat1 2.0.1-4ubuntu1.1
Ubuntu 9.04:
lib64expat1 2.0.1-4ubuntu0.9.04.1
libexpat1-udeb 2.0.1-4ubuntu0.9.04.1
libexpat1 2.0.1-4ubuntu0.9.04.1
Ubuntu 8.10:
lib64expat1 2.0.1-4ubuntu0.8.10.1
libexpat1-udeb 2.0.1-4ubuntu0.8.10.1
libexpat1 2.0.1-4ubuntu0.8.10.1
Ubuntu 8.04 LTS:
lib64expat1 2.0.1-0ubuntu1.1
libexpat1-udeb 2.0.1-0ubuntu1.1
libexpat1 2.0.1-0ubuntu1.1
Ubuntu 6.06 LTS:
libexpat1-udeb 1.95.8-3ubuntu0.1
libexpat1 1.95.8-3ubuntu0.1

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

After a standard system upgrade you need to restart any applications linked
against Expat to effect the necessary changes.

References

CVE-2009-2625, CVE-2009-3560, CVE-2009-3720