Incomplete cleanup in Linux kernel - CVE-2022-0171
Published: October 19, 2022
Vulnerability identifier: #VU68515
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-0171
CWE-ID: CWE-459
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incomplete cleanup in KVM SEV API. A local non-root (host) user-level application can crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).
How to mitigate CVE-2022-0171
Install updates from vendor's website.