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 (4)
Core 4
Core References
Mailing List, Patch, Vendor Advisory x_refsource_confirm
https://mail.openvswitch.org/pipermail/ovs-dev/2017-March/329323.html
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2648
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2727
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2418
Scores
CVSS v3
9.8
EPSS
0.0079
EPSS Percentile
74.0%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-125
Status
published
Products (1)
openvswitch/openvswitch
2.6.1
Published
May 29, 2017
Tracked Since
Feb 18, 2026