RedHat: RHSA-2021-1050:01 Moderate: openvswitch2.11 security update
Summary
Open vSwitch provides standard network bridging functions and support for
the 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 CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/2974891
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/#moderate
Package List
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source:
openvswitch2.11-2.11.3-86.el7fdp.src.rpm
ovn2.11-2.11.1-57.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
ovn2.11-2.11.1-57.el7fdp.ppc64le.rpm
ovn2.11-debuginfo-2.11.1-57.el7fdp.ppc64le.rpm
ovn2.11-host-2.11.1-57.el7fdp.ppc64le.rpm
ovn2.11-vtep-2.11.1-57.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
ovn2.11-2.11.1-57.el7fdp.x86_64.rpm
ovn2.11-debuginfo-2.11.1-57.el7fdp.x86_64.rpm
ovn2.11-host-2.11.1-57.el7fdp.x86_64.rpm
ovn2.11-vtep-2.11.1-57.el7fdp.x86_64.rpm
python-openvswitch2.11-2.11.3-86.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/
Topic
An update for openvswitch2.11 is now available in Red Hat Virtualization.Red Hat Product Security has rated this update as having a security impactofModerate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts - 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