CVEvulnerability

CVE-2020-36311

5.5 MEDIUM Published 2021-04-07 Modified 2026-10-08 Official page ↗
Status
Modified
Published
2021-04-07
Last modified
2026-10-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P

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.

Affected configurations

• linux linux kernel (< 5.9.0) • debian debian linux 9.0 • debian debian linux 10.0

References