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

Synopsis:          Important: Red Hat OpenStack Platform 16.2 (etcd) security update
Advisory ID:       RHSA-2023:3445-01
Product:           Red Hat OpenStack Platform
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:3445
Issue date:        2023-06-05
CVE Names:         CVE-2021-28235 CVE-2022-41723 CVE-2022-41724 
                   CVE-2022-41725 CVE-2023-24534 CVE-2023-24536 
                   CVE-2023-24537 CVE-2023-24538 CVE-2023-24539 
                   CVE-2023-24540 CVE-2023-29400 
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat OpenStack Platform 16.2 - ppc64le, x86_64

3. Description:

A highly-available key value store for shared configuration

Security Fix(es):

* Information discosure via debug function (CVE-2021-28235)

* html/template: improper handling of JavaScript whitespace
(CVE-2023-24540)

* golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding
(CVE-2022-41723)

* crypto/tls: large handshake records may cause panics (CVE-2022-41724)

* net/http mime/multipart: denial of service from excessive resource
consumption (CVE-2022-41725)

* net/http net/textproto: denial of service from excessive memory
allocation (CVE-2023-24534)

* net/http net/textproto mime/multipart: denial of service from excessive
resource consumption (CVE-2023-24536)

* go/parser: Infinite loop in parsing (CVE-2023-24537)

* html/template: backticks not treated as string delimiters
(CVE-2023-24538)

* html/template: improper sanitization of CSS values (CVE-2023-24539)

* html/template: improper handling of empty HTML attributes
(CVE-2023-29400)

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/):

2178358 - CVE-2022-41723 net/http, golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding
2178488 - CVE-2022-41725 golang: net/http, mime/multipart: denial of service from excessive resource consumption
2178492 - CVE-2022-41724 golang: crypto/tls: large handshake records may cause panics
2184441 - CVE-2021-28235 etcd: Information discosure via debug function
2184481 - CVE-2023-24538 golang: html/template: backticks not treated as string delimiters
2184482 - CVE-2023-24536 golang: net/http, net/textproto, mime/multipart: denial of service from excessive resource consumption
2184483 - CVE-2023-24534 golang: net/http, net/textproto: denial of service from excessive memory allocation
2184484 - CVE-2023-24537 golang: go/parser: Infinite loop in parsing
2196026 - CVE-2023-24539 golang: html/template: improper sanitization of CSS values
2196027 - CVE-2023-24540 golang: html/template: improper handling of JavaScript whitespace
2196029 - CVE-2023-29400 golang: html/template: improper handling of empty HTML attributes

6. Package List:

Red Hat OpenStack Platform 16.2:

Source:
etcd-3.3.23-14.el8ost.src.rpm

ppc64le:
etcd-3.3.23-14.el8ost.ppc64le.rpm
etcd-debuginfo-3.3.23-14.el8ost.ppc64le.rpm
etcd-debugsource-3.3.23-14.el8ost.ppc64le.rpm

x86_64:
etcd-3.3.23-14.el8ost.x86_64.rpm
etcd-debuginfo-3.3.23-14.el8ost.x86_64.rpm
etcd-debugsource-3.3.23-14.el8ost.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-2021-28235
https://access.redhat.com/security/cve/CVE-2022-41723
https://access.redhat.com/security/cve/CVE-2022-41724
https://access.redhat.com/security/cve/CVE-2022-41725
https://access.redhat.com/security/cve/CVE-2023-24534
https://access.redhat.com/security/cve/CVE-2023-24536
https://access.redhat.com/security/cve/CVE-2023-24537
https://access.redhat.com/security/cve/CVE-2023-24538
https://access.redhat.com/security/cve/CVE-2023-24539
https://access.redhat.com/security/cve/CVE-2023-24540
https://access.redhat.com/security/cve/CVE-2023-29400
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2023 Red Hat, Inc.
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