CVE-2023-1192CWE-416

Use-after-free in smb2_is_status_io_timeout()

Medium · published November 1, 2023

CVSS v3.1
6.5
EPSS
1%
Percentile
65.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01104 · 65.5th percentile
Weakness
CWE-416 · Use After Free
Published
2023-11-01T19:01Z
EPSS history
Timeline
  • 01 NOV 19:01Z
    Use-after-free in smb2_is_status_io_timeout()
    cvelistv5