Advisory Published
Updated

REDHAT-BUG-2345857

First published: Fri Feb 14 2025(Updated: )

When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap Out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.

Affected SoftwareAffected VersionHow to fix
GRUB 2

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Frequently Asked Questions

  • What is the severity of REDHAT-BUG-2345857?

    The severity of REDHAT-BUG-2345857 is considered high due to potential data integrity issues and the ability for attackers to circumvent secure boot protections.

  • How do I fix REDHAT-BUG-2345857?

    To fix REDHAT-BUG-2345857, ensure that you apply updates provided by Red Hat for the GNU GRUB2 package that address the vulnerability.

  • What are the potential consequences of REDHAT-BUG-2345857?

    The potential consequences of REDHAT-BUG-2345857 include data integrity issues and unauthorized circumvention of secure boot protections.

  • Which software is affected by REDHAT-BUG-2345857?

    REDHAT-BUG-2345857 affects the GNU GRUB2 bootloader.

  • Is there a workaround for REDHAT-BUG-2345857?

    Currently, there are no officially recommended workarounds for REDHAT-BUG-2345857; applying the fix with updates is advised.

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