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Red Hat Security Advisory 2021-5072-01

Red Hat Security Advisory 2021-5072-01
Posted Dec 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-5072-01 - A highly-available key value store for shared configuration.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-31525, CVE-2021-33195, CVE-2021-33197, CVE-2021-33198
SHA-256 | a2bcb1ef88e5d083f6f1ef9f98208fa1e3794f337bde2fe1a49b21b21ea8c205

Red Hat Security Advisory 2021-5072-01

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

Synopsis: Moderate: Red Hat OpenStack Platform 16.1 (etcd) security update
Advisory ID: RHSA-2021:5072-01
Product: Red Hat OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2021:5072
Issue date: 2021-12-09
CVE Names: CVE-2021-31525 CVE-2021-33195 CVE-2021-33197
CVE-2021-33198
=====================================================================

1. Summary:

An update for etcd is now available for Red Hat OpenStack Platform 16.1
(Train).

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 OpenStack Platform 16.1 - ppc64le, x86_64

3. Description:

A highly-available key value store for shared configuration

Security Fix(es):

* net/http: panic in ReadRequest and ReadResponse when reading a very large
header (CVE-2021-31525)

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.

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/):

1958341 - CVE-2021-31525 golang: net/http: panic in ReadRequest and ReadResponse when reading a very large header
1989564 - CVE-2021-33195 golang: net: lookup functions may return invalid host names
1989570 - CVE-2021-33197 golang: net/http/httputil: ReverseProxy forwards connection headers if first one is empty
1989575 - CVE-2021-33198 golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents

6. Package List:

Red Hat OpenStack Platform 16.1:

Source:
etcd-3.3.23-3.1.el8ost.1.src.rpm

ppc64le:
etcd-3.3.23-3.1.el8ost.1.ppc64le.rpm
etcd-debuginfo-3.3.23-3.1.el8ost.1.ppc64le.rpm
etcd-debugsource-3.3.23-3.1.el8ost.1.ppc64le.rpm

x86_64:
etcd-3.3.23-3.1.el8ost.1.x86_64.rpm
etcd-debuginfo-3.3.23-3.1.el8ost.1.x86_64.rpm
etcd-debugsource-3.3.23-3.1.el8ost.1.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-2021-31525
https://access.redhat.com/security/cve/CVE-2021-33195
https://access.redhat.com/security/cve/CVE-2021-33197
https://access.redhat.com/security/cve/CVE-2021-33198
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 2021 Red Hat, Inc.
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