CVE-2022-0168

MEDIUM

Linux Kernel < 5.18 - Denial of Service via SMB2 Query Info memdup_user Failure

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2037386
Third Party Advisory x_refsource_misc
https://access.redhat.com/security/cve/CVE-2022-0168

Scores

CVSS v3 4.4
EPSS 0.0002
EPSS Percentile 4.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (3)
linux/linux_kernel < 5.18
redhat/enterprise_linux 8.0
redhat/enterprise_linux 9.0
Published Aug 26, 2022
Tracked Since Feb 18, 2026