SB2024022715 - Remote code execution in Linux kernel ksmbd



SB2024022715 - Remote code execution in Linux kernel ksmbd

Published: February 27, 2024 Updated: May 14, 2025

Security Bulletin ID SB2024022715
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2024-26592)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a race condition when handling TCP connect and disconnect events within the ksmbd_tcp_new_connection() function in ksmbd. A remote non-authenticated attacker can trigger a use-after-free error and crash the kernel or execute arbitrary code on the system.


Remediation

Install update from vendor's website.

References