CVE-2023-4515

high

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed ("ksmbd: validate command payload size"), except for SMB2_OPLOCK_BREAK_HE command, the request size of other commands is not checked, it's not expected. Fix it by add check for request size of other commands.

References

https://git.kernel.org/stable/c/ff7236b66d69582f90cf5616e63cfc3dc18142bb

https://git.kernel.org/stable/c/c6bef3bc30fd4a175aef846b7d928a6c40d091cd

https://git.kernel.org/stable/c/5aa4fda5aa9c2a5a7bac67b4a12b089ab81fee3c

https://git.kernel.org/stable/c/595679098bdcdbfbba91ebe07a2f7f208df93870

Details

Source: Mitre, NVD

Published: 2025-08-16

Updated: 2025-08-18

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00018