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

Synopsis:          Moderate: openvswitch2.11 security update
Advisory ID:       RHSA-2021:3942-01
Product:           Red Hat Virtualization
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3942
Issue date:        2021-10-20
CVE Names:         CVE-2021-36980
====================================================================
1. Summary:

An update for openvswitch2.11 is now available for Red Hat Virtualization 4
for Red Hat Enterprise Linux 7.

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 Virtualization 4 Management Agent for RHEL 7 Hosts - ppc64le, x86_64

3. Description:

Open vSwitch provides standard network bridging functions and support for
the OpenFlow protocol for remote per-flow control of traffic.

Security Fix(es):

* openvswitch2.11: openvswitch: use-after-free in decode_NXAST_RAW_ENCAP
during the decoding of a RAW_ENCAP action (CVE-2021-36980)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) 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/2974891

5. Bugs fixed (https://bugzilla.redhat.com/):

1984473 - CVE-2021-36980 openvswitch: use-after-free in decode_NXAST_RAW_ENCAP during the decoding of a RAW_ENCAP action

6. Package List:

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:

Source:
openvswitch2.11-2.11.3-89.el7fdp.src.rpm

ppc64le:
openvswitch2.11-2.11.3-89.el7fdp.ppc64le.rpm
openvswitch2.11-debuginfo-2.11.3-89.el7fdp.ppc64le.rpm
openvswitch2.11-devel-2.11.3-89.el7fdp.ppc64le.rpm
python-openvswitch2.11-2.11.3-89.el7fdp.ppc64le.rpm

x86_64:
openvswitch2.11-2.11.3-89.el7fdp.x86_64.rpm
openvswitch2.11-debuginfo-2.11.3-89.el7fdp.x86_64.rpm
openvswitch2.11-devel-2.11.3-89.el7fdp.x86_64.rpm
python-openvswitch2.11-2.11.3-89.el7fdp.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-2021-36980
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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