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Centos Linux: CVE-2020-25632: Moderate: grub2 security update (Multiple Advisories)

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Centos Linux: CVE-2020-25632: 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
11/18/2021

Description

A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Solution(s)

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

References

  • CVE-2020-25632

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