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CVE-2017-9264

Published: 29 May 2017

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.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
openvswitch
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was not-affected [code not present])
upstream Needs triage

xenial Not vulnerable
(code not present)
yakkety Ignored
(end of life)
zesty
Released (2.6.1-0ubuntu5.1)
Patches:
upstream: https://github.com/openvswitch/ovs/commit/40225b0c04e2ae3e353cae12b8561ff237125b92

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H