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Vulnerability record · CVE-2017-14970 · published 2 October 2017

CVE-2017-14970: Openvswitch vulnerability

Openvswitch · Openvswitch

In lib/ofp-util.c in Open vSwitch (OvS) before 2.8.1, there are multiple memory leaks while parsing malformed OpenFlow group mod messages. NOTE: the vendor disputes the relevance of this report, stating "it can only be triggered by an OpenFlow controller, but OpenFlow controllers have much more direct and powerful ways to force Open vSwitch to allocate memory, such as by inserting flows into the flow table."

5.9 CVSS 3.0 Medium EPSS 1.2% · top 31.9% CWE-772 · CWE-772
5.9CVSS 3.0 base score, v2 4.3
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

In lib/ofp-util.c in Open vSwitch (OvS) before 2.8.1, there are multiple memory leaks while parsing malformed OpenFlow group mod messages. NOTE: the vendor disputes the relevance of this report, stating "it can only be triggered by an OpenFlow controller, but OpenFlow controllers have much more direct and powerful ways to force Open vSwitch to allocate memory, such as by inserting flows into the flow table."

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://mail.openvswitch.org/pipermail/ovs-dev/2017-September/339085.html Mailing ListPatchVendor Advisory
https://mail.openvswitch.org/pipermail/ovs-dev/2017-September/339086.html Mailing ListPatchVendor Advisory
https://mail.openvswitch.org/pipermail/ovs-dev/2017-September/339085.html Mailing ListPatchVendor Advisory
https://mail.openvswitch.org/pipermail/ovs-dev/2017-September/339086.html Mailing ListPatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-4338Openvswitch out-of-bounds read vulnerabilityAn integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.EPSS 1.3%9.8CVE-2022-4337Openvswitch out-of-bounds read vulnerabilityAn out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.EPSS 1.3%9.8CVE-2017-9264Openvswitch out-of-bounds read vulnerabilityIn lib/conntrack.c in the firewall implementation in Open vSwitch (OvS) 2.6.1, there is a buffer over-read while parsing malformed TCP, UDP, and IPv6…EPSS 2.4%9.8CVE-2017-9265Openvswitch out-of-bounds read vulnerabilityIn Open vSwitch (OvS) v2.7.0, there is a buffer over-read while parsing the group mod OpenFlow message sent from the controller in `lib/ofp-util.c` i…EPSS 2.8%9.8CVE-2017-9214Openvswitch vulnerabilityIn Open vSwitch (OvS) 2.7.0, while parsing an OFPT_QUEUE_GET_CONFIG_REPLY type OFP 1.0 message, there is a buffer over-read that is caused by an unsi…EPSS 2.9%9.8CVE-2016-2074Openvswitch memory buffer overflow vulnerabilityBuffer overflow in lib/flow.c in ovs-vswitchd in Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1 allows remote attackers to execute …EPSS 6.3%8.8CVE-2016-10377Openvswitch memory buffer overflow vulnerabilityIn Open vSwitch (OvS) 2.5.0, a malformed IP packet can cause the switch to read past the end of the packet buffer due to an unsigned integer underflo…EPSS 0.94%7.5CVE-2023-3966Openvswitch vulnerabilityA flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invali…EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2017-14970), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.