PT-2023-2816 · Linux+5 · Linux Kernel+5

Quentin Minster + 1 · Published 2023-04-27 · Updated 2024-08-22 · CVE-2023-32257

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 issue results from the lack of proper locking when performing operations on an object, specifically within the processing of SMB2 SESSION SETUP and SMB2 LOGOFF commands. An attacker can leverage this vulnerability 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-27639

AZL-27762

BDU:2023-02742

CVE-2023-32257

USN-6338-1

USN-6338-2

USN-6344-1

USN-6626-1

USN-6626-2

USN-6626-3

USN-6628-1

USN-6628-2

ZDI-23-705

Affected Products

Alt Linux

Astra Linux

Linux Kernel

Linuxmint

Red Os

Ubuntu

References · 70

• https://zerodayinitiative.com/advisories/ZDI-23-705 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-32257 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6338-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-2898 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-46813 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6338-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-32257 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-32250 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6626-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-6040 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6628-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6344-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-32257 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-6622 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-6606 · Vendor Advisory