[ALSA-2021:0696] Moderate: grub2 security update
Type:
security
Severity:
moderate
Release date:
2021-03-02
Description:
The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. Security Fix(es): * grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled (CVE-2020-14372) * grub2: Use-after-free in rmmod command (CVE-2020-25632) * grub2: Out-of-bounds write in grub_usb_device_initialize() (CVE-2020-25647) * grub2: Stack buffer overflow in grub_parser_split_cmdline() (CVE-2020-27749) * grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled (CVE-2020-27779) * grub2: Heap out-of-bounds write in short form option parser (CVE-2021-20225) * grub2: Heap out-of-bounds write due to miscalculation of space required for quoting (CVE-2021-20233) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Updated packages:
  • grub2-common-2.02-90.el8_3.1.alma.noarch.rpm
  • grub2-efi-ia32-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-efi-ia32-cdboot-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-efi-ia32-modules-2.02-90.el8_3.1.alma.noarch.rpm
  • grub2-efi-x64-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-efi-x64-cdboot-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-efi-x64-modules-2.02-90.el8_3.1.alma.noarch.rpm
  • grub2-pc-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-pc-modules-2.02-90.el8_3.1.alma.noarch.rpm
  • grub2-tools-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-tools-efi-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-tools-extra-2.02-90.el8_3.1.alma.x86_64.rpm
  • grub2-tools-minimal-2.02-90.el8_3.1.alma.x86_64.rpm
Notes:
This page is generated automatically and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.