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Red Hat Security Advisory

Synopsis: Moderate: etcd security, bug fix, and enhancement update
Advisory ID: RHSA-2019:1352-01
Product: Red Hat Enterprise Linux Extras
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1352
Issue date: 2019-06-04
CVE Names: CVE-2018-16886
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1. Summary:

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

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 7 Extras – aarch64, ppc64le, s390x, x86_64

3. Description:

The etcd packages provide a highly available key-value store for shared
configuration.

The following packages have been upgraded to a later upstream version: etcd
(3.2.26). (BZ#1676902)

Security Fix(es):

* etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via
gRPC-gateway (CVE-2018-16886)

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.

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/):

1651034 – CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
1676902 – Update etcd to the latest relevant upstream for AH 7.6.2

6. Package List:

Red Hat Enterprise Linux 7 Extras:

Source:
etcd-3.2.26-1.el7.src.rpm

aarch64:
etcd-3.2.26-1.el7.aarch64.rpm
etcd-debuginfo-3.2.26-1.el7.aarch64.rpm

ppc64le:
etcd-3.2.26-1.el7.ppc64le.rpm
etcd-debuginfo-3.2.26-1.el7.ppc64le.rpm

s390x:
etcd-3.2.26-1.el7.s390x.rpm
etcd-debuginfo-3.2.26-1.el7.s390x.rpm

Red Hat Enterprise Linux 7 Extras:

Source:
etcd-3.2.26-1.el7.src.rpm

aarch64:
etcd-3.2.26-1.el7.aarch64.rpm
etcd-debuginfo-3.2.26-1.el7.aarch64.rpm

ppc64le:
etcd-3.2.26-1.el7.ppc64le.rpm
etcd-debuginfo-3.2.26-1.el7.ppc64le.rpm

s390x:
etcd-3.2.26-1.el7.s390x.rpm
etcd-debuginfo-3.2.26-1.el7.s390x.rpm

x86_64:
etcd-3.2.26-1.el7.x86_64.rpm
etcd-debuginfo-3.2.26-1.el7.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-2018-16886
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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