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

ubuntu
Calendar Grey December 19, 2012
Scroller Ubuntu
An identified vulnerability in the Chromium browser's AppArmor configuration affects various Ubuntu releases. Please update immediately.
A weakness was discovered in the example AppArmor profile for chromium-browser.

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.

Topics%20covered

Topics Covered

security advisory critical ubuntu linux security apparmor chromium profile escape

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

Severity
critical
Lowest
Low
Medium
High
Critical

=========================================================================Ubuntu Security Notice USN-1676-1

Topics%20covered

Topics Covered

security advisory critical ubuntu linux security apparmor chromium profile escape

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

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