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Oracle Linux: (CVE-2020-14311) (Multiple Advisories): grub2 security update

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Oracle Linux: (CVE-2020-14311) (Multiple Advisories): grub2 security update

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:P)
Published
07/29/2020
Created
08/01/2020
Added
07/30/2020
Modified
11/23/2022

Description

There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.

Solution(s)

  • oracle-linux-upgrade-grub2
  • oracle-linux-upgrade-grub2-common
  • oracle-linux-upgrade-grub2-efi-aa64
  • oracle-linux-upgrade-grub2-efi-aa64-cdboot
  • oracle-linux-upgrade-grub2-efi-aa64-modules
  • oracle-linux-upgrade-grub2-efi-ia32
  • oracle-linux-upgrade-grub2-efi-ia32-cdboot
  • oracle-linux-upgrade-grub2-efi-ia32-modules
  • oracle-linux-upgrade-grub2-efi-x64
  • oracle-linux-upgrade-grub2-efi-x64-cdboot
  • oracle-linux-upgrade-grub2-efi-x64-modules
  • oracle-linux-upgrade-grub2-pc
  • oracle-linux-upgrade-grub2-pc-modules
  • oracle-linux-upgrade-grub2-tools
  • oracle-linux-upgrade-grub2-tools-efi
  • oracle-linux-upgrade-grub2-tools-extra
  • oracle-linux-upgrade-grub2-tools-minimal

References

  • ELSA-2020-5790
  • USN-4432-1
  • USN-4432-2
  • CVE-2020-14311

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