CVE-2024-45781 – Grub2 UFS Symbolic Link Heap Out-of-Bounds Write Vulnerability

The following table lists the changes that have been made to the
CVE-2024-45781 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Feb. 18, 2025

    Action Type Old Value New Value
    Added Description A flaw was found in grub2. 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.
    Added CVSS V3.1 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Added Reference https://access.redhat.com/security/cve/CVE-2024-45781
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2345857
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