Rapid7 Vulnerability & Exploit Database

Oracle Linux: (CVE-2020-27821) ELSA-2021-9285: qemu security update

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

Oracle Linux: (CVE-2020-27821) ELSA-2021-9285: qemu security update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
12/08/2020
Created
06/07/2021
Added
06/06/2021
Modified
06/06/2021

Description

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

Solution(s)

  • oracle-linux-upgrade-ivshmem-tools
  • oracle-linux-upgrade-qemu
  • oracle-linux-upgrade-qemu-block-gluster
  • oracle-linux-upgrade-qemu-block-iscsi
  • oracle-linux-upgrade-qemu-block-rbd
  • oracle-linux-upgrade-qemu-common
  • oracle-linux-upgrade-qemu-img
  • oracle-linux-upgrade-qemu-kvm
  • oracle-linux-upgrade-qemu-kvm-core
  • oracle-linux-upgrade-qemu-system-aarch64
  • oracle-linux-upgrade-qemu-system-aarch64-core
  • oracle-linux-upgrade-qemu-system-x86
  • oracle-linux-upgrade-qemu-system-x86-core

References

  • ELSA-2021-9285
  • CVE-2020-27821
  • USN-4725-1

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

;