RHSA-2019:0237 - Security Advisory

Topic

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.

[Updated 5th March 2019]
On 5th February 2019, the updated etcd packages previously included in this erratum were removed. For further details about this removal, refer to the Red Hat Knowledgebase article 3938261 linked in the References section.

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 (3.3.11). (BZ#1664290)

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, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Matt Wheeler (Osirium) 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 Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for ARM 64 7 aarch64
• Red Hat Enterprise Linux for Power 9 7 ppc64le
• Red Hat Enterprise Linux for IBM System z (Structure A) 7 s390x

Fixes

• BZ - 1651034 - CVE-2018-16886 etcd: Improper Authentication in auth/store.go:AuthInfoFromTLS() via gRPC-gateway
• BZ - 1664290 - Update etcd to the latest relevant upstream for AH 7.6.2

CVEs

(none)

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/articles/3938261