RHSA-2023:1961 - Security Advisory

Topic

An update for pcs is now available for Red Hat Enterprise Linux 8.4 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#2180703)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat Enterprise Linux Resilient Storage for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat Enterprise Linux High Availability for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat Enterprise Linux High Availability for Power LE - Update Services for SAP Solutions 8.4 ppc64le
• Red Hat Enterprise Linux High Availability for x86_64 - Update Services for SAP Solutions 8.4 x86_64
• Red Hat Enterprise Linux High Availability (for IBM z Systems) - Extended Update Support 8.4 s390x
• Red Hat Enterprise Linux High Availability (for ARM 64) - Extended Update Support 8.4 aarch64
• Red Hat Enterprise Linux Resilient Storage for IBM z Systems - Extended Update Support 8.4 s390x
• Red Hat Enterprise Linux High Availability for x86_64 - Telecommunications Update Service 8.4 x86_64

Fixes

• BZ - 2176477 - CVE-2023-27530 rubygem-rack: Denial of service in Multipart MIME parsing
• BZ - 2179649 - CVE-2023-27539 rubygem-rack: denial of service in header parsing
• BZ - 2180703 - Command 'pcs config checkpoint diff' does not show configuration differences between checkpoints [rhel-8.4.0.z]

CVEs

• CVE-2023-27530
• CVE-2023-27539

References

• https://access.redhat.com/security/updates/classification/#moderate