CVE-2023-4458 MEDIUM

CVE-2023-4458: Kernel: ksmbd: smb2_open out-of-bounds read information disclosure vulnerability

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-125
Published November 14, 2024
Last update November 14, 2024

CVSS base score

4.0/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A flaw was found within the parsing of extended attributes in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE.

Key dates

02Disclosure timeline

November 14, 2024 CVE published
November 14, 2024 Record updated