CVE-2023-3106

Name: CVE-2023-3106
Creator: NVD / NIST
Published: 2023-07-12T09:15:14.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.28%

Last modified Jun 17, 2026

CVE-2023-3106 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.28%

19.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 3.15, < 3.16.39	—
Linux	Linux Kernel	>= 3.17, < 4.4.223	—
Linux	Linux Kernel	>= 4.5, < 4.7.10	—
Linux	Linux Kernel	4.8	Rc1
Fedoraproject	Fedora	38	—

References

https://access.redhat.com/security/cve/CVE-2023-3106Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2221501Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/1ba5bf993c6a3142e18e68ea6452b347f9cb5635Patch
https://access.redhat.com/security/cve/CVE-2023-3106Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2221501Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/1ba5bf993c6a3142e18e68ea6452b347f9cb5635Patch

Timeline

Published: Jul 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3106?

How severe is CVE-2023-3106?

CVE-2023-3106 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3106?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3106?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST