#VU82983 Missing Protection Mechanism for Alternate Hardware Interface in FreeBSD - CVE-2023-5370
Published: November 10, 2023
Vulnerability identifier: #VU82983
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-5370
CWE-ID: CWE-1299
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
FreeBSD
FreeBSD
Software vendor:
FreeBSD Foundation
FreeBSD Foundation
Description
The vulnerability allows a local user to compromise the affected system.
The vulnerability exists due to a missing check for CPU 0 on AArch64 hardware when deciding whether to use the Secure Monitor Call Calling Convention (SMCCC) mechanism on a given CPU. An attacker with physical access to the system can compromise the affected system.
Remediation
Install updates from vendor's website.