Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2021-20225: Moderate: grub2 security update (Multiple Advisories)

Back to Search

Red Hat: CVE-2021-20225: Moderate: grub2 security update (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
03/02/2021
Created
03/04/2021
Added
03/03/2021
Modified
06/30/2021

Description

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Solution(s)

  • redhat-upgrade-fwupd
  • redhat-upgrade-fwupd-debuginfo
  • redhat-upgrade-fwupd-debugsource
  • redhat-upgrade-fwupd-tests-debuginfo
  • redhat-upgrade-grub2
  • redhat-upgrade-grub2-common
  • redhat-upgrade-grub2-debuginfo
  • redhat-upgrade-grub2-debugsource
  • redhat-upgrade-grub2-efi-aa64-modules
  • redhat-upgrade-grub2-efi-ia32
  • redhat-upgrade-grub2-efi-ia32-cdboot
  • redhat-upgrade-grub2-efi-ia32-modules
  • redhat-upgrade-grub2-efi-x64
  • redhat-upgrade-grub2-efi-x64-cdboot
  • redhat-upgrade-grub2-efi-x64-modules
  • redhat-upgrade-grub2-pc
  • redhat-upgrade-grub2-pc-modules
  • redhat-upgrade-grub2-ppc-modules
  • redhat-upgrade-grub2-ppc64
  • redhat-upgrade-grub2-ppc64-modules
  • redhat-upgrade-grub2-ppc64le-modules
  • redhat-upgrade-grub2-tools
  • redhat-upgrade-grub2-tools-debuginfo
  • redhat-upgrade-grub2-tools-efi
  • redhat-upgrade-grub2-tools-efi-debuginfo
  • redhat-upgrade-grub2-tools-extra
  • redhat-upgrade-grub2-tools-extra-debuginfo
  • redhat-upgrade-grub2-tools-minimal
  • redhat-upgrade-grub2-tools-minimal-debuginfo
  • redhat-upgrade-shim-ia32
  • redhat-upgrade-shim-x64

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

;