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AUSCERT External Security Bulletin Redistribution
ESB-2021.0520
openvswitch2.13 security and bug fix update
12 February 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: openvswitch2.13
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-35498 CVE-2020-27827
Reference: ESB-2021.0493
ESB-2021.0403
ESB-2021.0394
ESB-2021.0360
ESB-2021.0274
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:0497
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Red Hat Security Advisory
Synopsis: Moderate: openvswitch2.13 security and bug fix update
Advisory ID: RHSA-2021:0497-01
Product: Fast Datapath
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0497
Issue date: 2021-02-11
CVE Names: CVE-2020-27827 CVE-2020-35498
=====================================================================
1. Summary:
An update for openvswitch2.13 is now available for Fast Datapath for Red
Hat Enterprise Linux 8.
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 8 - 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.
Bug Fix(es):
* [RFE] Add auto load balance params (BZ#1920121)
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/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1908845 - CVE-2020-35498 openvswitch: limitation in the OVS packet parsing in userspace leads to DoS
1920121 - [RFE] Add auto load balance params
1921438 - CVE-2020-27827 lldp/openvswitch: denial of service via externally triggered memory leak
6. Package List:
Fast Datapath for Red Hat Enterprise Linux 8:
Source:
openvswitch2.13-2.13.0-79.5.el8fdp.src.rpm
noarch:
openvswitch2.13-test-2.13.0-79.5.el8fdp.noarch.rpm
ppc64le:
network-scripts-openvswitch2.13-2.13.0-79.5.el8fdp.ppc64le.rpm
openvswitch2.13-2.13.0-79.5.el8fdp.ppc64le.rpm
openvswitch2.13-debuginfo-2.13.0-79.5.el8fdp.ppc64le.rpm
openvswitch2.13-debugsource-2.13.0-79.5.el8fdp.ppc64le.rpm
openvswitch2.13-devel-2.13.0-79.5.el8fdp.ppc64le.rpm
openvswitch2.13-ipsec-2.13.0-79.5.el8fdp.ppc64le.rpm
python3-openvswitch2.13-2.13.0-79.5.el8fdp.ppc64le.rpm
python3-openvswitch2.13-debuginfo-2.13.0-79.5.el8fdp.ppc64le.rpm
s390x:
network-scripts-openvswitch2.13-2.13.0-79.5.el8fdp.s390x.rpm
openvswitch2.13-2.13.0-79.5.el8fdp.s390x.rpm
openvswitch2.13-debuginfo-2.13.0-79.5.el8fdp.s390x.rpm
openvswitch2.13-debugsource-2.13.0-79.5.el8fdp.s390x.rpm
openvswitch2.13-devel-2.13.0-79.5.el8fdp.s390x.rpm
openvswitch2.13-ipsec-2.13.0-79.5.el8fdp.s390x.rpm
python3-openvswitch2.13-2.13.0-79.5.el8fdp.s390x.rpm
python3-openvswitch2.13-debuginfo-2.13.0-79.5.el8fdp.s390x.rpm
x86_64:
network-scripts-openvswitch2.13-2.13.0-79.5.el8fdp.x86_64.rpm
openvswitch2.13-2.13.0-79.5.el8fdp.x86_64.rpm
openvswitch2.13-debuginfo-2.13.0-79.5.el8fdp.x86_64.rpm
openvswitch2.13-debugsource-2.13.0-79.5.el8fdp.x86_64.rpm
openvswitch2.13-devel-2.13.0-79.5.el8fdp.x86_64.rpm
openvswitch2.13-ipsec-2.13.0-79.5.el8fdp.x86_64.rpm
python3-openvswitch2.13-2.13.0-79.5.el8fdp.x86_64.rpm
python3-openvswitch2.13-debuginfo-2.13.0-79.5.el8fdp.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 <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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