CVE-2022-0168

Name: CVE-2022-0168
Creator: NVD / NIST
Published: 2022-08-26T18:15:08.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2022-0168 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.

Metrics

CVSS 3.1

4.4/10

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

EPSS Probability

0.26%

17.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.18
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0

References

https://access.redhat.com/security/cve/CVE-2022-0168Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2037386Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d6f5e358452479fa8a773b5c6ccc9e4ec5a20880Mailing List, Patch, Vendor Advisory
https://access.redhat.com/security/cve/CVE-2022-0168Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2037386Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d6f5e358452479fa8a773b5c6ccc9e4ec5a20880Mailing List, Patch, Vendor Advisory

Timeline

Published: Aug 26, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-0168?

How severe is CVE-2022-0168?

CVE-2022-0168 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2022-0168?

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-2022-0168?

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

Scan your code now

Source: NVD / NIST