CVE-2017-9264
9.8
CRITICAL
CVSS 3.1
EPSS 0.79%
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.
How to fix CVE-2017-9264
To remediate CVE-2017-9264, upgrade the affected package to a fixed version below.
- Debian/openvswitch—upgrade to 2.8.1+dfsg1-2 or later
Is CVE-2017-9264 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.8.1+dfsg1-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |