vulnerability
Red Hat: CVE-2020-36311: kernel: DoS by triggering destruction of a large SEV VM
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:N/I:N/A:P) | Apr 7, 2021 | Jul 9, 2025 | Jul 9, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Apr 7, 2021
Added
Jul 9, 2025
Modified
Jul 9, 2025
Description
An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a denial of service (soft lockup) by triggering destruction of a large SEV VM (which requires unregistering many encrypted regions), aka CID-7be74942f184.
Solution
no-fix-redhat-rpm-package
References
Rapid7 Labs
2026 Global Threat Landscape Report
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