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Red Hat: RHSA-2018-3500-01 Moderate: Openvswitch Network Security Fix

red hat
Calendar Grey November 5, 2018
Dist Redhat Esm H88
Find the latest security patch for Open vSwitch on Red Hat Enterprise Linux addressing moderate severity vulnerabilities and remediation steps.
An update for openvswitch is now available for Fast Datapath for Red Hat Enterprise Linux 7

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

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: Mishandle of group mods in lib/ofp-util.c:parse_group_prop_ntr_selection_method() allows for assertion failure (CVE-2018-17204)
* openvswitch: Error during bundle commit in ofproto/ofproto.c:ofproto_rule_insert__() allows for crash (CVE-2018-17205)
* openvswitch: Buffer over-read in lib/ofp-actions.c:decode_bundle() (CVE-2018-17206)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
* Previously, when the ovs-vswitchd service restarted, an error displayed with many open files. With this update, the number of sockets opened by ovs-vswitchd is decreased. As a result, the described problem no longer occurs. (BZ#1526306)
* Previously, when OpenvSwitch service was reloaded, the default flow was not removed and it became part of the final flow table. With this update, the default flow rule is no longer added after a service reload. As a result, the described problem no longer occurs. (BZ#1626096)
Enhancement(s):
* With this update, the pmd-rxq-assign configuration has been added to Poll Mode Drivers (PMDs) cores. This allows users to select a round-robin assignment. (BZ#1616001)
* With this update the ovs-appctl connection-status command has been introduced to the ovs-appctl utility. The command enables to monitor hypervisor (HV) south bound database (SBDB) connection status. Layered products can now check if the ovn-controller is properly connected to a central node. (BZ#1593804)
* With this update, a support for the Dynamic Host Configuration Protocol (DHCP) option 252 has been added to Open Virtual Network (OVN) Native DHCP. (BZ#1641765)

Topics%20covered

Topics Covered

security advisory network security red hat bug fix moderate severity openvswitch

References

https://access.redhat.com/security/cve/CVE-2018-17204 https://access.redhat.com/security/cve/CVE-2018-17205 https://access.redhat.com/security/cve/CVE-2018-17206 https://access.redhat.com/security/updates/classification#moderate

Package List

Channel to provide early releases to layered products:
Source: openvswitch-2.9.0-70.el7fdp.1.src.rpm
noarch: openvswitch-test-2.9.0-70.el7fdp.1.noarch.rpm
ppc64le: openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm openvswitch-debuginfo-2.9.0-70.el7fdp.1.ppc64le.rpm openvswitch-devel-2.9.0-70.el7fdp.1.ppc64le.rpm openvswitch-ovn-central-2.9.0-70.el7fdp.1.ppc64le.rpm openvswitch-ovn-common-2.9.0-70.el7fdp.1.ppc64le.rpm openvswitch-ovn-host-2.9.0-70.el7fdp.1.ppc64le.rpm openvswitch-ovn-vtep-2.9.0-70.el7fdp.1.ppc64le.rpm python-openvswitch-2.9.0-70.el7fdp.1.ppc64le.rpm
x86_64: openvswitch-2.9.0-70.el7fdp.1.x86_64.rpm openvswitch-debuginfo-2.9.0-70.el7fdp.1.x86_64.rpm openvswitch-devel-2.9.0-70.el7fdp.1.x86_64.rpm openvswitch-ovn-central-2.9.0-70.el7fdp.1.x86_64.rpm openvswitch-ovn-common-2.9.0-70.el7fdp.1.x86_64.rpm openvswitch-ovn-host-2.9.0-70.el7fdp.1.x86_64.rpm openvswitch-ovn-vtep-2.9.0-70.el7fdp.1.x86_64.rpm python-openvswitch-2.9.0-70.el7fdp.1.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-2018:3500-01
Product: Fast Datapath
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3500
Issue date: 2018-11-05

Topic

An update for openvswitch is now available for Fast Datapath for Red HatEnterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. 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.

Topics%20covered

Topics Covered

security advisory network security red hat bug fix moderate severity openvswitch

Relevant Releases Architectures

Channel to provide early releases to layered products - noarch, ppc64le, x86_64

Bugs Fixed

1526306 - ovs-vswitchd service hangs with Error too many open files

1580217 - [ovn]ipv6 load balancer for layer4 on logical router doesn't work

1593804 - ovn-controller: report when was the most recent successful communication with central

1609643 - Running/destroying testpmd in guest which enabling vIOMMU can cause host ovs-vswitchd[10869]: segfault

1616001 - [RFE] Add option to OVS 2.9 for legacy RXQ assignment to cores

1618488 - vhost-user backend crash on SET_MEM_TABLE request handling while port enabled

1626096 - systemctl reload openvswitch includes default flow.

1627711 - Backport "net/mlx{4,5}: avoid stripping the glue library" commits

1632522 - CVE-2018-17204 openvswitch: Mishandle of group mods in lib/ofp-util.c:parse_group_prop_ntr_selection_method() allows for assertion failure

1632525 - CVE-2018-17205 openvswitch: Error during bundle commit in ofproto/ofproto.c:ofproto_rule_insert__() allows for crash

1632528 - CVE-2018-17206 openvswitch: Buffer over-read in lib/ofp-actions.c:decode_bundle()

1641765 - [RFE] Support DHCP Option 252 in OVN Native DHCP

1643527 - Link OVS binaries statically

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