Issued:
2019-07-30
Updated:
2019-07-30

RHSA-2019:1945 - Important: keepalived security update

Synopsis

Important: keepalived security update

Type/Severity

Security Advisory Important

Topic

An update for keepalived is now available for Red Hat Enterprise Linux 7.4 Extended Update Support.

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 keepalived utility provides simple and robust facilities for load balancing and high availability. The load balancing framework relies on the well-known and widely used IP Virtual Server (IPVS) kernel module providing layer-4 (transport layer) load balancing. Keepalived implements a set of checkers to dynamically and adaptively maintain and manage a load balanced server pool according to the health of the servers. Keepalived also implements the Virtual Router Redundancy Protocol (VRRPv2) to achieve high availability with director failover.

Security Fix(es):

  • keepalived: Heap-based buffer overflow when parsing HTTP status codes allows for denial of service or possibly arbitrary code execution (CVE-2018-19115)

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

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions7.4x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support7.4x86_64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support7.4ppc64le
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions7.4ppc64le
Red Hat Enterprise Linux Server - TUS7.4x86_64
Red Hat Enterprise Linux Server - AUS7.4x86_64

Updated Packages

  • keepalived-1.3.5-1.el7_4.1.ppc64le.rpm
  • keepalived-1.3.5-1.el7_4.1.src.rpm
  • keepalived-1.3.5-1.el7_4.1.x86_64.rpm
  • keepalived-debuginfo-1.3.5-1.el7_4.1.x86_64.rpm
  • keepalived-debuginfo-1.3.5-1.el7_4.1.ppc64le.rpm

Fixes

CVEs

References

Additional information