(RHSA-2017:2418) Moderate: openvswitch security, bug fix, and enhancement update

2017-08-03T16:18:24
ID RHSA-2017:2418
Type redhat
Reporter RedHat
Modified 2018-03-19T16:29:42

Description

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

The following packages have been upgraded to a later upstream version: openvswitch (2.7.2). (BZ#1472854)

Security Fix(es):

  • An unsigned int wrap around leading to a buffer over-read was found when parsing OFPT_QUEUE_GET_CONFIG_REPLY messages in Open vSwitch (OvS). An attacker could use this flaw to cause a remote DoS. (CVE-2017-9214)

  • In Open vSwitch (OvS), while parsing an OpenFlow role status message there is a call to the abort() function for undefined role status reasons in the function ofp_print_role_status_message in lib/ofp-print.c that may be leveraged toward a remote DoS attack by a malicious switch. (CVE-2017-9263)

  • A buffer over-read was found in the Open vSwitch (OvS) firewall implementation. This flaw can be triggered by parsing a specially crafted TCP, UDP, or IPv6 packet. A remote attack could use this flaw to cause a Denial of Service (DoS). (CVE-2017-9264)

  • A buffer over-read flaw was found in Open vSwitch (OvS) while parsing the group mod OpenFlow messages sent from the controller. An attacker could use this flaw to cause a Denial of Service (DoS). (CVE-2017-9265)