CVE-2023-3865

high

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bound read in smb2_write ksmbd_smb2_check_message doesn't validate hdr->NextCommand. If ->NextCommand is bigger than Offset + Length of smb2 write, It will allow oversized smb2 write length. It will cause OOB read in smb2_write.

References

https://git.kernel.org/stable/c/c86211159bc3178b891e0d60e586a32c7b6a231b

https://git.kernel.org/stable/c/5fe7f7b78290638806211046a99f031ff26164e1

https://git.kernel.org/stable/c/58a9c41064df27632e780c5a3ae3e0e4284957d1

https://git.kernel.org/stable/c/3813eee5154d6a4c5875cb4444cb2b63bac8947f

Details

Source: Mitre, NVD

Published: 2025-08-16

Updated: 2025-08-18

Risk Information

CVSS v2

Base Score: 6.6

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

Severity: Medium

CVSS v3

Base Score: 8.4

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

Severity: High

EPSS

EPSS: 0.00043