#VU81662 NULL pointer dereference in Linux kernel - CVE-2023-3866

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Main Vulnerability Database Vulnerabilities #VU81662

#VU81662 NULL pointer dereference in Linux kernel - CVE-2023-3866

Published: October 5, 2023


Vulnerability identifier: #VU81662
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-3866
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the void __handle_ksmbd_work() function in fs/smb/server/server.c when handling chained requests. A remote attacker can send specially crafted data to the ksmbd and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links