Medium: pacemaker

Issue Overview:

An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in the haclient group could use IPC communication with various daemons directly to perform certain tasks that they would be prevented by ACLs from doing if they went through the configuration. (CVE-2020-25654)

Affected Packages:

pacemaker

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update pacemaker to update your system.

New Packages:

aarch64:  
    pacemaker-1.1.23-1.amzn2.1.aarch64  
    pacemaker-cli-1.1.23-1.amzn2.1.aarch64  
    pacemaker-libs-1.1.23-1.amzn2.1.aarch64  
    pacemaker-cluster-libs-1.1.23-1.amzn2.1.aarch64  
    pacemaker-remote-1.1.23-1.amzn2.1.aarch64  
    pacemaker-libs-devel-1.1.23-1.amzn2.1.aarch64  
    pacemaker-cts-1.1.23-1.amzn2.1.aarch64  
    pacemaker-doc-1.1.23-1.amzn2.1.aarch64  
    pacemaker-nagios-plugins-metadata-1.1.23-1.amzn2.1.aarch64  
    pacemaker-debuginfo-1.1.23-1.amzn2.1.aarch64  
  
i686:  
    pacemaker-1.1.23-1.amzn2.1.i686  
    pacemaker-cli-1.1.23-1.amzn2.1.i686  
    pacemaker-libs-1.1.23-1.amzn2.1.i686  
    pacemaker-cluster-libs-1.1.23-1.amzn2.1.i686  
    pacemaker-remote-1.1.23-1.amzn2.1.i686  
    pacemaker-libs-devel-1.1.23-1.amzn2.1.i686  
    pacemaker-cts-1.1.23-1.amzn2.1.i686  
    pacemaker-doc-1.1.23-1.amzn2.1.i686  
    pacemaker-nagios-plugins-metadata-1.1.23-1.amzn2.1.i686  
    pacemaker-debuginfo-1.1.23-1.amzn2.1.i686  
  
src:  
    pacemaker-1.1.23-1.amzn2.1.src  
  
x86_64:  
    pacemaker-1.1.23-1.amzn2.1.x86_64  
    pacemaker-cli-1.1.23-1.amzn2.1.x86_64  
    pacemaker-libs-1.1.23-1.amzn2.1.x86_64  
    pacemaker-cluster-libs-1.1.23-1.amzn2.1.x86_64  
    pacemaker-remote-1.1.23-1.amzn2.1.x86_64  
    pacemaker-libs-devel-1.1.23-1.amzn2.1.x86_64  
    pacemaker-cts-1.1.23-1.amzn2.1.x86_64  
    pacemaker-doc-1.1.23-1.amzn2.1.x86_64  
    pacemaker-nagios-plugins-metadata-1.1.23-1.amzn2.1.x86_64  
    pacemaker-debuginfo-1.1.23-1.amzn2.1.x86_64  

Additional References

Red Hat: CVE-2020-25654

Mitre: CVE-2020-25654