CVE-2017-9264

critical

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.

References

https://mail.openvswitch.org/pipermail/ovs-dev/2017-March/329323.html

https://access.redhat.com/errata/RHSA-2017:2727

https://access.redhat.com/errata/RHSA-2017:2648

https://access.redhat.com/errata/RHSA-2017:2418

Details

Source: Mitre, NVD

Published: 2017-05-29

Updated: 2019-10-03

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical