CVE-2023-3338

Name: CVE-2023-3338
Creator: NVD / NIST
Published: 2023-06-30T22:15:10.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 8.09%

Last modified Jun 17, 2026

CVE-2023-3338 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.. EPSS estimates a 8.09% chance of exploitation in the next 30 days.

Description

A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

8.09%

94.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 6.5
Netapp	Active Iq Unified Manager	All versions
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://access.redhat.com/security/cve/CVE-2023-3338Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218618Issue Tracking
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
https://seclists.org/oss-sec/2023/q2/276Exploit, Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230824-0005/Third Party Advisory
https://www.debian.org/security/2023/dsa-5480Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-3338Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218618Issue Tracking
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
https://seclists.org/oss-sec/2023/q2/276Exploit, Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230824-0005/Third Party Advisory
https://www.debian.org/security/2023/dsa-5480Third Party Advisory

Timeline

Published: Jun 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3338?

A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.

How severe is CVE-2023-3338?

CVE-2023-3338 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 8.09% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3338?

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-2023-3338?

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

Scan your code now

Source: NVD / NIST