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Ubuntu 12.04 LTS: USN-1676-1 Critical AppArmor Chromium Profile Escape

A weakness was discovered in the example AppArmor profile for chromium-browser.. =========================================================================Ubuntu Security Notice USN-1676-1 December 19, 2012 AppArmor update ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 LTS - Ubuntu 11.10 Summary: A weakness was discovered in the example AppArmor profile for chromium-browser. Software Description: - apparmor: Linux security system Details: Dan Rosenberg discovered that the example AppArmor profile for chromium-browser could be escaped by calling xdg-settings with a crafted environment. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: apparmor-profiles 2.7.102-0ubuntu3.7 Ubuntu 11.10: apparmor-profiles 2.7.0~beta1+bzr1774-1ubuntu2.2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-1676-1 https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1045986 Package Information: https://launchpad.net/ubuntu/+source/apparmor/2.7.102-0ubuntu3.7 https://launchpad.net/ubuntu/+source/apparmor/2.7.0~beta1+bzr1774-1ubuntu2.2 . An identified vulnerability in the Chromium browser's AppArmor configuration affects various Ubuntu releases. Please update immediately.. AppArmor Security Update, Chromium Escape Issue, Critical Linux Patch. . Severity: Critical. LinuxSecurity.com Team

Dec 19, 2012 •Critical Ubuntu