CVE-2022-0171
MEDIUM severity · CVSS 5.5 · CWE-459
5.5CVSS MEDIUM
Summary
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).
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (3)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=2038940 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=2038940Patch
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6bPatch
- https://access.redhat.com/security/cve/CVE-2022-0171Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlAdvisory
- https://www.debian.org/security/2022/dsa-5257Advisory