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Vulnerability Details : CVE-2018-17204

An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
Publish Date : 2018-09-19 Last Update Date : 2019-10-02
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Single system (The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).)
Gained Access None
Vulnerability Type(s)
CWE ID 617

- Products Affected By CVE-2018-17204

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 18.04 ~~lts~~~ Version Details Vulnerabilities
3 Application Openvswitch Openvswitch 2.7.0 Version Details Vulnerabilities
4 Application Openvswitch Openvswitch 2.7.1 Version Details Vulnerabilities
5 Application Openvswitch Openvswitch 2.7.2 Version Details Vulnerabilities
6 Application Openvswitch Openvswitch 2.7.3 Version Details Vulnerabilities
7 Application Openvswitch Openvswitch 2.7.4 Version Details Vulnerabilities
8 Application Openvswitch Openvswitch 2.7.5 Version Details Vulnerabilities
9 Application Openvswitch Openvswitch 2.7.6 Version Details Vulnerabilities
10 Application Redhat Openstack 10 Version Details Vulnerabilities
11 Application Redhat Openstack 13.0 Version Details Vulnerabilities
12 OS Redhat Virtualization 4.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 2
Openvswitch Openvswitch 7
Redhat Openstack 2
Redhat Virtualization 1

- References For CVE-2018-17204
REDHAT RHSA-2018:3500
REDHAT RHSA-2019:0053
REDHAT RHSA-2019:0081

- Metasploit Modules Related To CVE-2018-17204

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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