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Red Hat: RHSA-2021-0835-01 Moderate: Openvswitch DoS Fix

Redhat Large Esm H500
An update for openvswitch2.13 is now available in Fast Datapath for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of
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Hash: SHA256

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

Synopsis:          Moderate: openvswitch2.13 security update
Advisory ID:       RHSA-2021:0835-01
Product:           Fast Datapath
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0835
Issue date:        2021-03-15
CVE Names:         CVE-2020-27827 CVE-2020-35498 
====================================================================
1. Summary:

An update for openvswitch2.13 is now available in Fast Datapath 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:

Fast Datapath for Red Hat Enterprise Linux 7 - noarch, ppc64le, s390x, 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):

* 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.

4. Solution:

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

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

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

6. Package List:

Fast Datapath for Red Hat Enterprise Linux 7:

Source:
openvswitch2.13-2.13.0-81.el7fdp.src.rpm

noarch:
openvswitch2.13-test-2.13.0-81.el7fdp.noarch.rpm

ppc64le:
openvswitch2.13-2.13.0-81.el7fdp.ppc64le.rpm
openvswitch2.13-debuginfo-2.13.0-81.el7fdp.ppc64le.rpm
openvswitch2.13-devel-2.13.0-81.el7fdp.ppc64le.rpm
openvswitch2.13-ipsec-2.13.0-81.el7fdp.ppc64le.rpm
python3-openvswitch2.13-2.13.0-81.el7fdp.ppc64le.rpm

s390x:
openvswitch2.13-2.13.0-81.el7fdp.s390x.rpm
openvswitch2.13-debuginfo-2.13.0-81.el7fdp.s390x.rpm
openvswitch2.13-devel-2.13.0-81.el7fdp.s390x.rpm
openvswitch2.13-ipsec-2.13.0-81.el7fdp.s390x.rpm
python3-openvswitch2.13-2.13.0-81.el7fdp.s390x.rpm

x86_64:
openvswitch2.13-2.13.0-81.el7fdp.x86_64.rpm
openvswitch2.13-debuginfo-2.13.0-81.el7fdp.x86_64.rpm
openvswitch2.13-devel-2.13.0-81.el7fdp.x86_64.rpm
openvswitch2.13-ipsec-2.13.0-81.el7fdp.x86_64.rpm
python3-openvswitch2.13-2.13.0-81.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-2020-27827
https://access.redhat.com/security/cve/CVE-2020-35498
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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Red Hat: RHSA-2021-0835-01 Moderate: Openvswitch DoS Fix

red hat
Calendar Grey March 15, 2021
Dist Redhat Esm H88
An upgrade to openvswitch2.13 bolsters security measures for Red Hat Enterprise Linux 7. Delve into the specifics of impacts and corrective actions.
An update for openvswitch2.13 is now available in Fast Datapath for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, 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):
* 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.

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

Fast Datapath for Red Hat Enterprise Linux 7:
Source: openvswitch2.13-2.13.0-81.el7fdp.src.rpm
noarch: openvswitch2.13-test-2.13.0-81.el7fdp.noarch.rpm
ppc64le: openvswitch2.13-2.13.0-81.el7fdp.ppc64le.rpm openvswitch2.13-debuginfo-2.13.0-81.el7fdp.ppc64le.rpm openvswitch2.13-devel-2.13.0-81.el7fdp.ppc64le.rpm openvswitch2.13-ipsec-2.13.0-81.el7fdp.ppc64le.rpm python3-openvswitch2.13-2.13.0-81.el7fdp.ppc64le.rpm
s390x: openvswitch2.13-2.13.0-81.el7fdp.s390x.rpm openvswitch2.13-debuginfo-2.13.0-81.el7fdp.s390x.rpm openvswitch2.13-devel-2.13.0-81.el7fdp.s390x.rpm openvswitch2.13-ipsec-2.13.0-81.el7fdp.s390x.rpm python3-openvswitch2.13-2.13.0-81.el7fdp.s390x.rpm
x86_64: openvswitch2.13-2.13.0-81.el7fdp.x86_64.rpm openvswitch2.13-debuginfo-2.13.0-81.el7fdp.x86_64.rpm openvswitch2.13-devel-2.13.0-81.el7fdp.x86_64.rpm openvswitch2.13-ipsec-2.13.0-81.el7fdp.x86_64.rpm python3-openvswitch2.13-2.13.0-81.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


Advisory ID: RHSA-2021:0835-01
Product: Fast Datapath
Issue date: 2021-03-15

Topic

An update for openvswitch2.13 is now available in Fast Datapath for Red HatEnterprise Linux 7.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.

Relevant Releases Architectures

Fast Datapath for Red Hat Enterprise Linux 7 - noarch, ppc64le, s390x, 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

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