Rapid7 Vulnerability & Exploit Database

Ubuntu: (Multiple Advisories) (CVE-2020-36311): Linux kernel vulnerabilities

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Ubuntu: (Multiple Advisories) (CVE-2020-36311): Linux kernel vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
04/07/2021
Created
09/20/2021
Added
09/09/2021
Modified
03/22/2023

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(s)

  • ubuntu-upgrade-linux-image-5-4-0-1023-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1046-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1052-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1052-gke
  • ubuntu-upgrade-linux-image-5-4-0-1054-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1056-aws
  • ubuntu-upgrade-linux-image-5-4-0-1058-azure
  • ubuntu-upgrade-linux-image-5-4-0-84-generic
  • ubuntu-upgrade-linux-image-5-4-0-84-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-84-lowlatency
  • ubuntu-upgrade-linux-image-5-8-0-1043-azure
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-lts-20-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-lts-20-04
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-20-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-20-04
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04

References

  • https://attackerkb.com/topics/cve-2020-36311
  • CVE - 2020-36311
  • DSA-4941
  • CVE-2020-36311
  • USN-5070-1
  • USN-5071-1
  • USN-5071-2
  • USN-5071-3
  • USN-5073-1
  • USN-5073-2
  • USN-5073-3
  • USN-5091-1
  • USN-5091-2
  • USN-5092-1
  • USN-5092-2
  • USN-5094-1
  • USN-5094-2
  • USN-5096-1
  • USN-5106-1
  • USN-5113-1
  • USN-5114-1
  • USN-5115-1
  • USN-5116-1
  • USN-5116-2
  • USN-5117-1
  • USN-5120-1
  • USN-5135-1
  • USN-5136-1
  • USN-5137-1
  • USN-5137-2
  • USN-5210-1
  • USN-5299-1
  • USN-5343-1
View more

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;