==========================================================================
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://usn.ubuntu.com/usn/usn-3861-2
https://usn.ubuntu.com/usn/usn-3861-1
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—
==========================================================================
Ubuntu Security Notice USN-3861-1
January 16, 2019
policykit-1 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
PolicyKit could allow unintended access.
Software Description:
– policykit-1: framework for managing administrative policies and privileges
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 18.10:
libpolkit-backend-1-0 0.105-21ubuntu0.3
policykit-1 0.105-21ubuntu0.3
Ubuntu 18.04 LTS:
libpolkit-backend-1-0 0.105-20ubuntu0.18.04.4
policykit-1 0.105-20ubuntu0.18.04.4
Ubuntu 16.04 LTS:
libpolkit-backend-1-0 0.105-14.1ubuntu0.4
policykit-1 0.105-14.1ubuntu0.4
Ubuntu 14.04 LTS:
libpolkit-backend-1-0 0.105-4ubuntu3.14.04.5
policykit-1 0.105-4ubuntu3.14.04.5
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3861-1
CVE-2018-19788
Package Information:
https://launchpad.net/ubuntu/+source/policykit-1/0.105-21ubuntu0.3
https://launchpad.net/ubuntu/+source/policykit-1/0.105-20ubuntu0.18.04.4
https://launchpad.net/ubuntu/+source/policykit-1/0.105-14.1ubuntu0.4
https://launchpad.net/ubuntu/+source/policykit-1/0.105-4ubuntu3.14.04.5
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