RHSA-2023:1981 — Security Advisory
Red Hat Security Advisory: pcs security and bug fix update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · April 25, 2023
Updated · June 28, 2026
Topic
An update for pcs is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.
Security Fix(es):
-
rubygem-rack: Denial of service in Multipart MIME parsing (CVE-2023-27530)
-
rubygem-rack: denial of service in header parsing (CVE-2023-27539)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
-
Command 'pcs config checkpoint diff' does not show configuration differences between checkpoints (BZ#2180699)
-
[WebUI] fence levels prevent loading of cluster status (BZ#2183192)