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Red Hat OpenStack 13.0 RHSA-2021-2456-01 Important DoS Threat

red hat
Calendar Grey June 16, 2021
Dist Redhat Esm H88
A security notice for Red Hat OpenStack Platform 13.0 highlighting critical patches for openvswitch2.11.
An update for openvswitch2.11 is now available for Red Hat OpenStack Platform 13 (Queens)

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

Summary

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic.
Security Fix(es):
* limitation in the OVS packet parsing in userspace leads to DoS (CVE-2020-35498)
* denial of service via externally triggered memory leak (CVE-2020-27827)
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.

Topics%20covered

Topics Covered

security advisory Red Hat important DoS threat openvswitch

References

https://access.redhat.com/security/cve/CVE-2020-27827 https://access.redhat.com/security/cve/CVE-2020-35498 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat OpenStack Platform 13.0:
Source: openvswitch2.11-2.11.3-86.el7fdp.src.rpm
ppc64le: openvswitch2.11-2.11.3-86.el7fdp.ppc64le.rpm openvswitch2.11-debuginfo-2.11.3-86.el7fdp.ppc64le.rpm openvswitch2.11-devel-2.11.3-86.el7fdp.ppc64le.rpm python-openvswitch2.11-2.11.3-86.el7fdp.ppc64le.rpm
x86_64: openvswitch2.11-2.11.3-86.el7fdp.x86_64.rpm openvswitch2.11-debuginfo-2.11.3-86.el7fdp.x86_64.rpm openvswitch2.11-devel-2.11.3-86.el7fdp.x86_64.rpm python-openvswitch2.11-2.11.3-86.el7fdp.x86_64.rpm
Red Hat OpenStack Platform 13.0:
noarch: openvswitch2.11-test-2.11.3-86.el7fdp.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2456-01
Product: Red Hat OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2456
Issue date: 2021-06-16

Topic

An update for openvswitch2.11 is now available for Red Hat OpenStackPlatform 13 (Queens).Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat important DoS threat openvswitch

Relevant Releases Architectures

Red Hat OpenStack Platform 13.0 - noarch, ppc64le, x86_64

Bugs Fixed

1908845 - CVE-2020-35498 openvswitch: limitation in the OVS packet parsing in userspace leads to DoS

1921438 - CVE-2020-27827 lldp/openvswitch: denial of service via externally triggered memory leak

1928901 - Include latest FDP release in RHOSP 13z16

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