CVE-2020-36311

Advisory lineage Upstream: 0 Downstream: 23
Modified
Published: 06 Apr 2021, 23:28
Last modified:04 Aug 2024, 17:23

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.08% LOW
0% probability -0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 Apr 2021, 23:28
Published
Vulnerability first disclosed
04 Aug 2024, 17:23
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.08%• Percentile: 23%

Affected Systems

  • debian•debian_linux

    9.0 | 10.0

  • linux•linux_kernel

    < 5.9.0

References (4)