[RHSA-2021:2077-01] Important: openvswitch security update

[Security announcements for all Red Hat products and services.]

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                   Red Hat Security Advisory

Synopsis:          Important: openvswitch security update
Advisory ID:       RHSA-2021:2077-01
Product:           Fast Datapath
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2077
Issue date:        2021-05-20
CVE Names:         CVE-2015-8011 CVE-2020-27827 CVE-2020-35498 
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1. Summary:

An update for openvswitch 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 Important. 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):

* lldpd: buffer overflow in the lldp_decode function in
daemon/protocols/lldp.c
(CVE-2015-8011)

* 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)

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/):

1896536 - CVE-2015-8011 lldpd: buffer overflow in the lldp_decode function in daemon/protocols/lldp.c
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
1950032 - Update openvswitch to 2.9.9

6. Package List:

Fast Datapath for Red Hat Enterprise Linux 7:

Source:
openvswitch-2.9.9-1.el7fdp.src.rpm

noarch:
openvswitch-test-2.9.9-1.el7fdp.noarch.rpm

ppc64le:
openvswitch-2.9.9-1.el7fdp.ppc64le.rpm
openvswitch-debuginfo-2.9.9-1.el7fdp.ppc64le.rpm
openvswitch-devel-2.9.9-1.el7fdp.ppc64le.rpm
python-openvswitch-2.9.9-1.el7fdp.ppc64le.rpm

s390x:
openvswitch-2.9.9-1.el7fdp.s390x.rpm
openvswitch-debuginfo-2.9.9-1.el7fdp.s390x.rpm
openvswitch-devel-2.9.9-1.el7fdp.s390x.rpm
python-openvswitch-2.9.9-1.el7fdp.s390x.rpm

x86_64:
openvswitch-2.9.9-1.el7fdp.x86_64.rpm
openvswitch-debuginfo-2.9.9-1.el7fdp.x86_64.rpm
openvswitch-devel-2.9.9-1.el7fdp.x86_64.rpm
python-openvswitch-2.9.9-1.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-2015-8011
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
https://access.redhat.com/security/updates/classification#important

8. Contact:

The Red Hat security contact is <secalert at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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