#VU92187 Out-of-bounds read in Linux kernel - CVE-2023-4458
Published: June 17, 2024
Vulnerability identifier: #VU92187
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-4458
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when parsing extended attributes within the smb2_open() function in ksmbd. A remote non-authenticated attacker can send specially crafted requests to the daemon, trigger an out-of-bounds read error and read contents of memory on the system.
Remediation
Install updates from vendor's website.