RHSA-2021:1050: Moderate: openvswitch2.11 security update

Published Mar 31, 2021
·
Updated

Open vSwitch provides standard network bridging functions and support forthe OpenFlow protocol for remote per-flow control of traffic.Security Fix(es): openvswitch: limitation in the OVS packet parsing in userspace leads to DoS (CVE-2020-35498) lldp/openvswitch: denial of service via externally triggered memory leak (CVE-2020-27827) For more details about the security issue(s), including the impact, a CVSSscore, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

8 affected componentsFixes available
redhat/openvswitch2.11<2.11.3-86.el7fd
2.11.3-86.el7fd
redhat/ovn2.11<2.11.1-57.el7fd
2.11.1-57.el7fd
redhat/openvswitch2.11-debuginfo<2.11.3-86.el7fd
2.11.3-86.el7fd
redhat/openvswitch2.11-devel<2.11.3-86.el7fd
2.11.3-86.el7fd
redhat/ovn2.11-debuginfo<2.11.1-57.el7fd
2.11.1-57.el7fd
redhat/ovn2.11-host<2.11.1-57.el7fd
2.11.1-57.el7fd
redhat/ovn2.11-vtep<2.11.1-57.el7fd
2.11.1-57.el7fd
redhat/python-openvswitch2.11<2.11.3-86.el7fd
2.11.3-86.el7fd

Remediation

Event History

Feb 12, 2026
Advisory Published
via Red Hat·03:40 PM
Data Sourced
via Red Hat·03:40 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2021:1050?

The severity of RHSA-2021:1050 is classified as moderate.

2

How do I fix RHSA-2021:1050?

To fix RHSA-2021:1050, update to the relevant versions of the affected packages provided by Red Hat.

3

What vulnerabilities are addressed in RHSA-2021:1050?

RHSA-2021:1050 addresses a limitation in OVS packet parsing that can lead to a Denial of Service.

4

Which versions of Open vSwitch are affected by RHSA-2021:1050?

Open vSwitch versions prior to 2.11.3-86.el7fd are affected by RHSA-2021:1050.

5

Is there a workaround for RHSA-2021:1050?

There are no specific workarounds recommended for RHSA-2021:1050; updating to the latest version is advised.

Contact

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