PT-2023-4397 · Linux+3 · Linux Kernel+3

Published 2023-06-26 · Updated 2025-08-16 · CVE-2023-3865

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 a buffer out-of-bounds read in the ksmbd smb2 check message function of the Linux kernel's ksmbd module. This could allow a remote attacker to execute arbitrary code. The vulnerability is associated with the smb2 write function.

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

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2023-04742

CVE-2023-3865

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-23-980

Affected Products

Astra Linux

Linux Kernel

Linuxmint

Ubuntu

References · 97

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3865.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-4273 · Security Note
• 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
• https://ubuntu.com/security/CVE-2023-5345 · Vendor Advisory