NULL pointer dereference in Linux kernel - CVE-2023-32248

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Main Vulnerability Database Vulnerabilities #VU79474

NULL pointer dereference in Linux kernel - CVE-2023-32248

Published: August 14, 2023


Vulnerability identifier: #VU79474
CSH Severity: 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-2023-32248
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 in ksmbd in Linux kernel when handling SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. A remote attacker can send  specially crafted data to the system and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links