RHSA-2022:0237 - Security Advisory

Topic

An update for etcd is now available for Red Hat OpenStack Platform 16.2
(Train).

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

A highly-available key value store for shared configuration

Security Fix(es):

• net/http: limit growth of header canonicalization cache (CVE-2021-44716)
• net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet (CVE-2021-29923)
• crypto/tls: certificate of wrong type is causing TLS client to panic

(CVE-2021-34558)

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

• Red Hat OpenStack for IBM Power 16.2 ppc64le
• Red Hat OpenStack 16.2 x86_64

Fixes

• BZ - 1983596 - CVE-2021-34558 golang: crypto/tls: certificate of wrong type is causing TLS client to panic
• BZ - 1992006 - CVE-2021-29923 golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet
• BZ - 2030801 - CVE-2021-44716 golang: net/http: limit growth of header canonicalization cache

CVEs

• CVE-2021-29923
• CVE-2021-34558
• CVE-2021-44716

References

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