CVE-2023-23005

Name: CVE-2023-23005
Creator: NVD / NIST
Published: 2023-03-01T20:15:15.1+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2023-23005 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.27%

18.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	< 6.2	—
Suse	Linux Enterprise Server	15	Sp5

References

https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2Issue Tracking, Patch, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2Mailing List, Patch, Release Notes
https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5eePatch
https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2Issue Tracking, Patch, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2Mailing List, Patch, Release Notes
https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5eePatch

Timeline

Published: Mar 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23005?

How severe is CVE-2023-23005?

CVE-2023-23005 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23005?

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-2023-23005?

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

Scan your code now

Source: NVD / NIST