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Centos Linux: CVE-2020-25647: Moderate: grub2 security update (Multiple Advisories)

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Centos Linux: CVE-2020-25647: 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. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. 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-2020-25647

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