CVE-2023-1668
openvswitch - security update
8.2
HIGH
CVSS 3.1
EPSS 0.24%
Description
A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.
How to fix CVE-2023-1668
To remediate CVE-2023-1668, upgrade the affected package to a fixed version below.
- —upgrade to 2.15.0+ds1-2+deb11u4 or later
- —upgrade to 2.10.7+ds1-0+deb10u4 or later
- —upgrade to 2.15.0+ds1-2+deb11u4 or later
Is CVE-2023-1668 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.15.0+ds1-2+deb11u4
- from 0, < 2.10.7+ds1-0+deb10u4
- from 0, < 2.15.0+ds1-2+deb11u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |