Advisory Published
Updated

REDHAT-BUG-2345858

First published: Fri Feb 14 2025(Updated: )

When reading a HFS volume's name at grub_fs_mount(), the HFS filesystem driver performs a strcpy() using the user provided volume name as input without proper validating the volume name's length. This may read to a heap based Out-of-bounds write, impacting on grub's sensitive data integrity and eventually leading to secure boot protection bypass.

Affected SoftwareAffected VersionHow to fix
GRUB for EFI (ARM64)

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Frequently Asked Questions

  • What is the severity of REDHAT-BUG-2345858?

    The severity of REDHAT-BUG-2345858 is critical due to the potential for a heap-based out-of-bounds write that could compromise sensitive data integrity.

  • How do I fix REDHAT-BUG-2345858?

    To fix REDHAT-BUG-2345858, update your GNU GRUB to the latest patched version that contains the necessary validations for volume name lengths.

  • What type of vulnerability is REDHAT-BUG-2345858?

    REDHAT-BUG-2345858 is a heap-based buffer overflow vulnerability caused by improper input validation in the HFS filesystem driver.

  • Who is affected by REDHAT-BUG-2345858?

    Users of GNU GRUB, particularly those utilizing HFS volumes, are affected by REDHAT-BUG-2345858.

  • What are the potential impacts of REDHAT-BUG-2345858?

    The potential impacts of REDHAT-BUG-2345858 include data corruption and compromised integrity of the bootloader, which could lead to system instability or failure.

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