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Ubuntu Security Notice USN-4623-1
November 09, 2020
pacemaker vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.10
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
Pacemaker could be made to run programs as an administrator.
Software Description:
– pacemaker: Cluster resource manager
Details:
Ken Gaillot discovered that Pacemaker incorrectly handled IPC
communications permissions. A local attacker could possibly use this issue
to bypass ACL restrictions and execute arbitrary code as root.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.10:
pacemaker 2.0.4-2ubuntu3.1
Ubuntu 20.04 LTS:
pacemaker 2.0.3-3ubuntu4.1
Ubuntu 18.04 LTS:
pacemaker 1.1.18-0ubuntu1.3
Ubuntu 16.04 LTS:
pacemaker 1.1.14-2ubuntu1.9
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4623-1
CVE-2020-25654
Package Information:
https://launchpad.net/ubuntu/+source/pacemaker/2.0.4-2ubuntu3.1
https://launchpad.net/ubuntu/+source/pacemaker/2.0.3-3ubuntu4.1
https://launchpad.net/ubuntu/+source/pacemaker/1.1.18-0ubuntu1.3
https://launchpad.net/ubuntu/+source/pacemaker/1.1.14-2ubuntu1.9
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