=========================================================================Ubuntu Security Notice USN-3861-2
January 16, 2019
policykit-1 vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
PolicyKit could allow unintended access.
Software Description:
- policykit-1: framework for managing administrative policies and
privileges
Details:
USN-3861-1 fixed a vulnerability in PolicyKit. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that PolicyKit incorrectly handled certain large
user UIDs. A local attacker with a large UID could possibly use this
issue to perform privileged actions.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
libpolkit-backend-1-0 0.104-1ubuntu1.4
policykit-1 0.104-1ubuntu1.4
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-3861-2
https://ubuntu.com/security/notices/USN-3861-1
CVE-2018-19788
