PT-2023-4398 · Linux+3 · Linux Kernel+3

Published 2023-06-26 · Updated 2025-08-16 · CVE-2023-3866

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux Kernel ksmbd (affected versions not specified)

Description The issue is related to errors in pointer dereferencing in the ksmbd module of the Linux operating system kernel. Exploitation of this issue may allow a remote attacker to cause a denial of service. The problem is associated with the validation of session and tree IDs in compound requests.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2023-04743

CVE-2023-3866

OESA-2023-1614

OESA-2023-1615

OESA-2023-1616

USN-6416-1

USN-6416-2

USN-6416-3

USN-6445-1

USN-6445-2

USN-6464-1

USN-6466-1

USN-6520-1

ZDI-23-979

Affected Products

Astra Linux

Linux Kernel

Linuxmint

Ubuntu

References · 98

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3866.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-4273 · Security Note
• https://git.kernel.org/stable/c/5005bcb4219156f1bf7587b185080ec1da08518e · Patch
• https://ubuntu.com/security/CVE-2023-44466 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-4921 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-3865 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-45871 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6416-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-3863 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-38431 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-4132 · Security Note
• https://ubuntu.com/security/CVE-2023-38432 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6445-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6520-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-38427 · Vendor Advisory