CVE-2023-1192 MEDIUM

CVE-2023-1192: Use-after-free in smb2_is_status_io_timeout()

Vendor N/A
Product kernel
Weakness CWE-416
Published November 1, 2023
Last update February 27, 2025
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service.

Key dates

02Disclosure timeline

November 1, 2023 CVE published
February 27, 2025 Record updated