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

Synopsis:          Moderate: Red Hat OpenStack Platform 16.1 (python-eventlet) security update
Advisory ID:       RHSA-2021:5071-01
Product:           Red Hat OpenStack Platform
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:5071
Issue date:        2021-12-09
CVE Names:         CVE-2021-21419 
=====================================================================

1. Summary:

An update for python-eventlet 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 - noarch

3. Description:

Eventlet is a networking library written in Python. It achieves high
scalability by using non-blocking io while at the same time retaining high
programmer usability by using coroutines to make the non-blocking io
operations appear blocking at the source code
level.

Security Fix(es):

* improper handling of highly compressed data and memory allocation with
excessive size allows DoS (CVE-2021-21419)

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/):

1958407 - CVE-2021-21419 python-eventlet: improper handling of highly compressed data and memory allocation with excessive size allows DoS

6. Package List:

Red Hat OpenStack Platform 16.1:

Source:
python-eventlet-0.25.2-5.el8ost.1.src.rpm

noarch:
python3-eventlet-0.25.2-5.el8ost.1.noarch.rpm

Red Hat OpenStack Platform 16.1:

Source:
python-eventlet-0.25.2-5.el8ost.1.src.rpm

noarch:
python3-eventlet-0.25.2-5.el8ost.1.noarch.rpm

Red Hat OpenStack Platform 16.1:

Source:
python-eventlet-0.25.2-5.el8ost.1.src.rpm

noarch:
python3-eventlet-0.25.2-5.el8ost.1.noarch.rpm

Red Hat OpenStack Platform 16.1:

Source:
python-eventlet-0.25.2-5.el8ost.1.src.rpm

noarch:
python3-eventlet-0.25.2-5.el8ost.1.noarch.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-2021-21419
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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