PT-2023-2821 · Linux+5 · Linux Kernel+5

Mauro Matteo Cascella · Published 2023-04-27 · Updated 2024-08-22 · CVE-2023-32258

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

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

Description A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2 LOGOFF and SMB2 CLOSE commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this issue to execute code in the context of the kernel.

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

Race Condition

Improper Locking

Weakness Enumeration

CWE-362

CWE-667

Related Identifiers

ALT-PU-2024-4263

ALT-PU-2024-4843

AZL-27640

AZL-27763

BDU:2023-02747

CVE-2023-32258

USN-6338-1

USN-6338-2

USN-6344-1

USN-6725-1

USN-6725-2

ZDI-23-706

Affected Products

Alt Linux

Astra Linux

Linux Kernel

Linuxmint

Red Os

Ubuntu

References · 96

• https://ubuntu.com/security/CVE-2023-52340 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26591 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52448 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52449 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6338-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52463 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52457 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-32254 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-2898 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52438 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52443 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6338-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52467 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02747 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-32258 · Vendor Advisory