RHSA-2020:2298 - Security Advisory

Topic

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 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.

Description

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic.

Security Fix(es):

• dpdk: librte_vhost Interger overflow in vhost_user_set_log_base() (CVE-2020-10722)
• dpdk: librte_vhost Integer truncation in vhost_user_check_and_alloc_queue_pair() (CVE-2020-10723)

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):

• OVS causing high pings and latency inside guest VM when an active DPDK port fails (BZ#1822198)
• SEGV after recirculation in batch processing in vswitchd 2.9.0 (BZ#1826886)

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

Affected Products

• Red Hat Enterprise Linux Fast Datapath 7 x86_64
• Red Hat Virtualization - Extended Update Support 4.2 for RHEL 7.6 x86_64
• Red Hat Enterprise Linux Fast Datapath (for RHEL Server for IBM Power LE) 7 ppc64le
• Red Hat Enterprise Linux Fast Datapath (for IBM z Systems) 7 s390x

Fixes

• BZ - 1822198 - OVS causing high pings and latency inside guest VM when an active DPDK port fails
• BZ - 1826886 - SEGV after recirculation in batch processing in vswitchd 2.9.0
• BZ - 1828867 - CVE-2020-10722 dpdk: librte_vhost Interger overflow in vhost_user_set_log_base()
• BZ - 1828874 - CVE-2020-10723 dpdk: librte_vhost Integer truncation in vhost_user_check_and_alloc_queue_pair()

CVEs

• CVE-2020-10722
• CVE-2020-10723

References

• https://access.redhat.com/security/updates/classification/#moderate