CVE-2020-36311

Medium

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.

SeverityMedium

CVSS5.5

Exploit probability—

Product

Linux Kernel

PublishedApr 7, 2021

First seenApr 7, 2021

How to fix

Update

linux linux_kernel5.9.0 or later

Vendor advisories

debian.org/security/2021/dsa-4941

Affected products

Product	Affected versions	Fixed in
linux linux_kernel	v < 5.9.0	5.9.0
debian debian_linux	9.0, 10.0	—

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