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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: keepalived security and bug fix update
Advisory ID:       RHSA-2022:1930-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:1930
Issue date:        2022-05-10
CVE Names:         CVE-2021-44225 
=====================================================================

1. Summary:

An update for keepalived is now available for Red Hat Enterprise Linux 8.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. 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: dbus access control bypass (CVE-2021-44225)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.6 Release Notes linked from the References section.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

2027156 - CVE-2021-44225 keepalived: dbus access control bypass

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
keepalived-2.1.5-8.el8.src.rpm

aarch64:
keepalived-2.1.5-8.el8.aarch64.rpm
keepalived-debuginfo-2.1.5-8.el8.aarch64.rpm
keepalived-debugsource-2.1.5-8.el8.aarch64.rpm

ppc64le:
keepalived-2.1.5-8.el8.ppc64le.rpm
keepalived-debuginfo-2.1.5-8.el8.ppc64le.rpm
keepalived-debugsource-2.1.5-8.el8.ppc64le.rpm

s390x:
keepalived-2.1.5-8.el8.s390x.rpm
keepalived-debuginfo-2.1.5-8.el8.s390x.rpm
keepalived-debugsource-2.1.5-8.el8.s390x.rpm

x86_64:
keepalived-2.1.5-8.el8.x86_64.rpm
keepalived-debuginfo-2.1.5-8.el8.x86_64.rpm
keepalived-debugsource-2.1.5-8.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-44225
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.6_release_notes/

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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