5.5
CVSSv3

CVE-2020-36311

Published: 07/04/2021 Updated: 03/05/2022
CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 187
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Summary

An issue exists in the Linux kernel prior to 5.9. arch/x86/kvm/svm/sev.c allows malicious users 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.

Vulnerability Trend

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linux linux kernel

debian debian linux 9.0

debian debian linux 10.0

Vendor Advisories

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks CVE-2020-36311 A flaw was discovered in the KVM subsystem for AMD CPUs, allowing an attacker to cause a denial of service by triggering destruction of a large SEV VM CVE-2021-3609 Norber ...
A flaw was found in the Linux kernel This flaw allows attackers to cause a denial of service (soft lockup) by triggering the destruction of a large SEV VM, which requires unregistering many encrypted regions The highest threat from this vulnerability is to system availability (CVE-2020-36311) A flaw was found in the Linux kernel's BPF subsystem, ...