Synopsis

Moderate: openvswitch security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

An update for openvswitch is now available for Fast Datapath for RHEL 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: possible memory leak leads to denial of service (CVE-2019-14818)

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):

• Fast datapath guaranteed bandwidth for SR-IOV, OVS and OVS-DPDK (Test-only) (BZ#1546429)
• [ovs2.9] SSL connections drops are constantly logged in ovsdb-server-nb.log (BZ#1563574)
• [FD-7 hotfix] Connectivity issue across VXLAN tunnels in OVS-DPDK after reboot of hypervisor - problem clears up after restarting openvswitch (BZ#1758824)

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 - 1546429 - Fast datapath guaranteed bandwidth for SR-IOV, OVS and OVS-DPDK (Test-only)
• BZ - 1563574 - [ovs2.9] SSL connections drops are constantly logged in ovsdb-server-nb.log
• BZ - 1737327 - CVE-2019-14818 dpdk: possible memory leak leads to denial of service
• BZ - 1758824 - [FD-7 hotfix] Connectivity issue across VXLAN tunnels in OVS-DPDK after reboot of hypervisor - problem clears up after restarting openvswitch

CVEs

• CVE-2019-14818

References