=========================================================== Ubuntu Security Notice USN-890-1 January 20, 2010 expat vulnerabilities CVE-2009-2625, CVE-2009-3560, CVE-2009-3720 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 8.04 LTS Ubuntu 8.10 Ubuntu 9.04 Ubuntu 9.10 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: libexpat1 1.95.8-3ubuntu0.1 libexpat1-udeb 1.95.8-3ubuntu0.1 Ubuntu 8.04 LTS: lib64expat1 2.0.1-0ubuntu1.1 libexpat1 2.0.1-0ubuntu1.1 libexpat1-udeb 2.0.1-0ubuntu1.1 Ubuntu 8.10: lib64expat1 2.0.1-4ubuntu0.8.10.1 libexpat1 2.0.1-4ubuntu0.8.10.1 libexpat1-udeb 2.0.1-4ubuntu0.8.10.1 Ubuntu 9.04: lib64expat1 2.0.1-4ubuntu0.9.04.1 libexpat1 2.0.1-4ubuntu0.9.04.1 libexpat1-udeb 2.0.1-4ubuntu0.9.04.1 Ubuntu 9.10: lib64expat1 2.0.1-4ubuntu1.1 libexpat1 2.0.1-4ubuntu1.1 libexpat1-udeb 2.0.1-4ubuntu1.1 After a standard system upgrade you need to restart any applications linked against Expat to effect the necessary changes. Details follow: 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)