==========================================================================
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:
http://www.ubuntu.com/usn/usn-1676-1
https://launchpad.net/bugs/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

– ubuntu-security-announce mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce