============================================================================ Ubuntu Security Notice USN-1904-1 July 15, 2013 libxml2 vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 13.04 - Ubuntu 12.10 - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Summary: Several security issues were fixed in libxml2. Software Description: - libxml2: GNOME XML library Details: It was discovered that libxml2 would load XML external entities by default. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly obtain access to arbitrary files or cause resource consumption. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 12.10. (CVE-2013-0339) It was discovered that libxml2 incorrectly handled documents that end abruptly. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. (CVE-2013-2877) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 13.04: libxml2 2.9.0+dfsg1-4ubuntu4.2 Ubuntu 12.10: libxml2 2.8.0+dfsg1-5ubuntu2.3 Ubuntu 12.04 LTS: libxml2 2.7.8.dfsg-5.1ubuntu4.5 Ubuntu 10.04 LTS: libxml2 2.7.6.dfsg-1ubuntu1.9 After a standard system update you need to reboot your computer to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1904-1 CVE-2013-0339, CVE-2013-2877 Package Information: https://launchpad.net/ubuntu/+source/libxml2/2.9.0+dfsg1-4ubuntu4.2 https://launchpad.net/ubuntu/+source/libxml2/2.8.0+dfsg1-5ubuntu2.3 https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-5.1ubuntu4.5 https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.9