The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3500 advisory.

    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)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 7 : openvswitch (RHSA-2018:3500)

high Nessus Plugin ID 118745

Version 1.11

Version 1.10

Version 1.9

Version 1.11 Jul 26, 2024, 8:52 AM Exploit attributes ("Exploit available" set to "True") Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202407260852
Version 1.10 Jun 3, 2024, 4:41 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202406031641
Version 1.9 Apr 28, 2024, 3:17 AM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C") CVSSv2 score source (set to "CVE-2018-17205") Detection (updated detection logic) Plugin metadata Reference Plugin Feed: 202404280317