CVE-2023-3865

kernel: Out of bounds read in smb2_write

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Severity

Important

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · July 28, 2023

Updated · October 17, 2026

Description

A flaw was found in the Linux kernel. The ksmbd_smb2_check_message function does not validate the size of hdr->NextCommand, which may cause an out-of-bounds read of smb2_write, affecting confidentiality and availability.

Statement

The ksmbd kernel component is not shipped with any Red Hat Products.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:H

CWE-125 · Out-of-bounds Read