CVE-2022-0171 — MEDIUM (5.5)

Q: How severe is CVE-2022-0171?

CVE-2022-0171 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2022-0171?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Debian Debian Linux.

Vulnerability Description

A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	< 5.18
Redhat	Enterprise Linux	8.0
Debian	Debian Linux	10.0

Related Weaknesses (CWE)

CWE-459 CWE-212

References

https://access.redhat.com/security/cve/CVE-2022-0171Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2038940Issue TrackingPatchThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68Mailing ListPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
https://www.debian.org/security/2022/dsa-5257Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-0171Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2038940Issue TrackingPatchThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68Mailing ListPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
https://www.debian.org/security/2022/dsa-5257Third Party Advisory

FAQ

What is CVE-2022-0171?

CVE-2022-0171 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM ins...

How severe is CVE-2022-0171?

CVE-2022-0171 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-0171?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Debian Debian Linux.