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    CVE-2024-56738

    GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.

    Published:Dec 29, 2024
    Last Modified:Jun 24, 2025
    EPS:Dec 29, 2024
    EPSS Score:0.00091
    CVSS Score:5.3

    Affected Products

    Vendor
    Gnu
    Product
    Grub2

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2025-1125 (CVSS 7.8) — When reading data from a hfs filesystem, grub's hfs filesystem module uses user-controlled parameters from the…
    CVE-2024-45777 (CVSS 6.7) — A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_…
    CVE-2025-0686 (CVSS 6.4) — A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem m…
    CVE-2025-0689 (CVSS 7.8) — When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadat…
    CVE-2025-0684 (CVSS 6.4) — A flaw was found in grub2. When performing a symlink lookup from a reiserfs filesystem, grub's reiserfs fs mod…
    CVE-2025-0685 (CVSS 6.4) — A flaw was found in grub2. When reading data from a jfs filesystem, grub's jfs filesystem module uses user-con…
    CVE-2024-45782 (CVSS 7.8) — A flaw was found in the HFS filesystem. When reading an HFS volume's name at grub_fs_mount(), the HFS filesyst…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High