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

Synopsis:          Important: Red Hat OpenStack Platform 16.2 (python-twisted) security update
Advisory ID:       RHSA-2022:0992-01
Product:           Red Hat OpenStack Platform
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0992
Issue date:        2022-03-23
CVE Names:         CVE-2022-21712 CVE-2022-21716
====================================================================
1. Summary:

An update for python-twisted 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:

Twisted is a networking engine written in Python, supporting numerous
protocols. It contains a web server, numerous chat clients, chat servers,
mail servers and more.

Security Fix(es):

* Secret exposure in cross-origin redirects of python-twisted
(CVE-2022-21712)
* SSH client and server denial of service during SSH handshake
(CVE-2022-21716)

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/):

2051865 - CVE-2022-21712 dev-python/twisted: secret exposure in cross-origin redirects
2060960 - CVE-2022-21716 python-twisted: SSH client and server denial of service during SSH handshake

6. Package List:

Red Hat OpenStack Platform 16.2:

Source:
python-twisted-16.4.1-19.el8ost.src.rpm

ppc64le:
python-twisted-debugsource-16.4.1-19.el8ost.ppc64le.rpm
python3-twisted-16.4.1-19.el8ost.ppc64le.rpm
python3-twisted-debuginfo-16.4.1-19.el8ost.ppc64le.rpm

x86_64:
python-twisted-debugsource-16.4.1-19.el8ost.x86_64.rpm
python3-twisted-16.4.1-19.el8ost.x86_64.rpm
python3-twisted-debuginfo-16.4.1-19.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-2022-21712
https://access.redhat.com/security/cve/CVE-2022-21716
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 2022 Red Hat, Inc.
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