ALBA-2021:3578 pacemaker bug fix and enhancement update
Pacemaker cluster manager updates fix bugs causing unfence loops and unremovable attributes, potentially leading to service disruption.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- Available
What is ALBA-2021:3578?
ALBA-2021:3578 is a vulnerability in pacemaker, published on 21 Sep 2021.
Official description
The Pacemaker cluster resource manager is a collection of technologies working together to maintain data integrity and application availability in the event of failures.
Bug Fix(es) and Enhancement(s):
pacemaker seems to end up in an unfence loop (BZ#1972273)
On a three-node cluster if two nodes are hard-reset, sometimes the cluster ends up with unremovable transient attributes (BZ#1989622)
Pacemaker fencer should retry failed meta-data commands (BZ#1992014)
[RFE] Add ability to use sbd on cluster nodes but not remote nodes (BZ#1993891)
Which versions are affected by ALBA-2021:3578?
Linux distribution packages (7)
pacemaker AlmaLinux:8 | All versions | 2.0.5-9.el8_4.3 |
pacemaker-cli AlmaLinux:8 | All versions | 2.0.5-9.el8_4.3 |
pacemaker-cts AlmaLinux:8 | All versions | 2.0.5-9.el8_4.3 |
pacemaker-doc AlmaLinux:8 | All versions | 2.0.5-9.el8_4.3 |
pacemaker-libs-devel AlmaLinux:8 | All versions | 2.0.5-9.el8_4.3 |
pacemaker-nagios-plugins-metadata AlmaLinux:8 | All versions | 2.0.5-9.el8_4.3 |
pacemaker-remote AlmaLinux:8 | All versions | 2.0.5-9.el8_4.3 |
How do I fix ALBA-2021:3578?
Apply the vendor's patch.
Is ALBA-2021:3578 being exploited?
There is no known exploitation of ALBA-2021:3578 in the wild and no public exploit code.