Important: pacemaker security update

Synopsis

Important: pacemaker security update

Type/Severity

Security Advisory: Important

Topic

An update for pacemaker is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. 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 Pacemaker cluster resource manager is a collection of technologies working together to maintain data integrity and application availability in the event of failures.

Security Fix(es):

• pacemaker: Insufficient local IPC client-server authentication on the client's side can lead to local privesc (CVE-2018-16877)
  
• pacemaker: Insufficient verification inflicted preference of uncontrolled processes can lead to DoS (CVE-2018-16878)
  
• pacemaker: Information disclosure through use-after-free (CVE-2019-3885)
  

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.

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 7 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 7 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux Resilient Storage for IBM z Systems 7 s390x
• Red Hat Enterprise Linux High Availability for IBM z Systems 7 s390x
• Red Hat Enterprise Linux Resilient Storage for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux Resilient Storage (for IBM Power LE) - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux High Availability for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux High Availability (for IBM Power LE) - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux High Availabilty (for IBM Power LE) - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux High Availability - Update Services for SAP Solutions 7.6 x86_64

Fixes

• BZ - 1652646 - CVE-2018-16877 pacemaker: Insufficient local IPC client-server authentication on the client's side can lead to local privesc
• BZ - 1657962 - CVE-2018-16878 pacemaker: Insufficient verification inflicted preference of uncontrolled processes can lead to DoS
• BZ - 1694554 - CVE-2019-3885 pacemaker: Information disclosure through use-after-free

CVEs

• CVE-2018-16877
• CVE-2018-16878
• CVE-2019-3885

References

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