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Vulnerability record · CVE-2017-9264 · published 29 May 2017

CVE-2017-9264: Openvswitch out-of-bounds read vulnerability

Openvswitch · Openvswitch

In 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 packets in the functions `extract_l3_ipv6`, `extract_l4_tcp`, and `extract_l4_udp` that can be triggered remotely.

9.8 CVSS 3.0 Critical EPSS 2.4% · top 16.5% CWE-125 · Out-of-bounds read
9.8CVSS 3.0 base score, v2 7.5
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

In 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 packets in the functions `extract_l3_ipv6`, `extract_l4_tcp`, and `extract_l4_udp` that can be triggered remotely.

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

Affected products

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

References

LinkTags
https://access.redhat.com/errata/RHSA-2017:2418
https://access.redhat.com/errata/RHSA-2017:2648
https://access.redhat.com/errata/RHSA-2017:2727
https://mail.openvswitch.org/pipermail/ovs-dev/2017-March/329323.html Mailing ListPatchVendor Advisory
https://access.redhat.com/errata/RHSA-2017:2418
https://access.redhat.com/errata/RHSA-2017:2648
https://access.redhat.com/errata/RHSA-2017:2727
https://mail.openvswitch.org/pipermail/ovs-dev/2017-March/329323.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-2017-9265Openvswitch 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%7.5CVE-2024-22563Openvswitch memory leak vulnerabilityopenvswitch 2.17.8 was discovered to contain a memory leak via the function xmalloc__ in openvswitch-2.17.8/lib/util.c.EPSS 0.57%

Source: NIST National Vulnerability Database (record CVE-2017-9264), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.