Important: corosync security update

Synopsis

Important: corosync security update

Type/Severity

Security Advisory: Important

Topic

An update for corosync 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 corosync packages provide the Corosync Cluster Engine and C APIs for Red Hat Enterprise Linux cluster software.

Security Fix(es):

• corosync: Integer overflow in exec/totemcrypto.c:authenticate_nss_2_3() function (CVE-2018-1084)
  

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Citrix Security Response Team for reporting this issue.

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 RHEL Server) 7 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) 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 RHEL Server) - Extended Update Support 7.5 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 IBM Power LE) 7 ppc64le
• Red Hat Enterprise Linux Resilient Storage (for IBM Power LE) - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux Resilient Storage (for IBM Power LE) - Extended Update Support 7.5 ppc64le
• Red Hat Enterprise Linux High Availability (for IBM Power LE) 7 ppc64le
• Red Hat Enterprise Linux High Availability (for IBM Power LE) - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux High Availability (for IBM Power LE) - Extended Update Support 7.5 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 - 1552830 - CVE-2018-1084 corosync: Integer overflow in exec/totemcrypto.c:authenticate_nss_2_3() function

CVEs

• CVE-2018-1084

References

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