PT-2017-18815 · Open Vswitch+1 · Openvswitch+1

Bhargava Shastry · Published 2017-05-29 · Updated 2019-10-03 · CVE-2017-9264

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Open vSwitch (OvS) version 2.6.1

Description The issue is related to a buffer over-read that occurs while parsing malformed TCP, UDP, and IPv6 packets. This can be triggered remotely and is associated with the functions extract l3 ipv6, extract l4 tcp, and extract l4 udp.

Recommendations For Open vSwitch (OvS) version 2.6.1, consider disabling the functions extract l3 ipv6, extract l4 tcp, and extract l4 udp as a temporary workaround until a patch is available. Restrict access to the firewall implementation to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2017-9264

RHSA-2017:2418

RHSA-2017:2648

RHSA-2017:2727

USN-3450-1

Affected Products

Openvswitch

Ubuntu

References · 18

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9264 · Security Note
• https://osv.dev/vulnerability/USN-3450-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-9264 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2648 · Vendor Advisory
• https://mail.openvswitch.org/pipermail/ovs-dev/2017-March/329323.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9264 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-9264 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9214 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2418 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2727 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3450-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9265 · Security Note
• https://osv.dev/vulnerability/CVE-2017-9264 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-9264 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9263 · Security Note