Rapid7 Vulnerability & Exploit Database

Ubuntu: (Multiple Advisories) (CVE-2021-43056): Linux kernel (OEM 5.10) vulnerabilities

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Ubuntu: (Multiple Advisories) (CVE-2021-43056): Linux kernel (OEM 5.10) vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
10/28/2021
Created
11/13/2021
Added
11/11/2021
Modified
03/22/2023

Description

An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.

Solution(s)

  • ubuntu-upgrade-linux-image-5-10-0-1051-oem
  • ubuntu-upgrade-linux-image-5-11-0-1021-kvm
  • ubuntu-upgrade-linux-image-5-11-0-1023-aws
  • ubuntu-upgrade-linux-image-5-11-0-1023-azure
  • ubuntu-upgrade-linux-image-5-11-0-1023-oracle
  • ubuntu-upgrade-linux-image-5-11-0-1024-gcp
  • ubuntu-upgrade-linux-image-5-11-0-1024-raspi
  • ubuntu-upgrade-linux-image-5-11-0-1024-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-11-0-44-generic
  • ubuntu-upgrade-linux-image-5-11-0-44-generic-64k
  • ubuntu-upgrade-linux-image-5-11-0-44-generic-lpae
  • ubuntu-upgrade-linux-image-5-11-0-44-lowlatency
  • ubuntu-upgrade-linux-image-5-13-0-1007-kvm
  • ubuntu-upgrade-linux-image-5-13-0-1008-aws
  • ubuntu-upgrade-linux-image-5-13-0-1008-gcp
  • ubuntu-upgrade-linux-image-5-13-0-1009-azure
  • ubuntu-upgrade-linux-image-5-13-0-1011-oracle
  • ubuntu-upgrade-linux-image-5-13-0-1012-raspi
  • ubuntu-upgrade-linux-image-5-13-0-1012-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-13-0-1026-oem
  • ubuntu-upgrade-linux-image-5-13-0-23-generic
  • ubuntu-upgrade-linux-image-5-13-0-23-generic-64k
  • ubuntu-upgrade-linux-image-5-13-0-23-generic-lpae
  • ubuntu-upgrade-linux-image-5-13-0-23-lowlatency
  • ubuntu-upgrade-linux-image-5-14-0-1008-oem
  • ubuntu-upgrade-linux-image-5-4-0-1010-ibm
  • ubuntu-upgrade-linux-image-5-4-0-1023-bluefield
  • ubuntu-upgrade-linux-image-5-4-0-1029-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1048-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1051-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1057-gke
  • ubuntu-upgrade-linux-image-5-4-0-1059-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1059-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1060-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1065-azure
  • ubuntu-upgrade-linux-image-5-4-0-92-generic
  • ubuntu-upgrade-linux-image-5-4-0-92-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-92-lowlatency
  • ubuntu-upgrade-linux-image-5-4-0-94-generic
  • ubuntu-upgrade-linux-image-5-4-0-94-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-94-lowlatency
  • 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-bluefield
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-20-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • 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-ibm
  • ubuntu-upgrade-linux-image-ibm-lts-20-04
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-20-04c
  • ubuntu-upgrade-linux-image-oem-20-04d
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-20-04
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-hwe-18-04
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04

References

View more

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
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

;