CVE-2008-3896

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    CVE-2008-3896

    Published: 3 Sept 2008Last Modified: 10 Apr 2026

    Summary:

    Details: Grub Legacy 0.97 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer before and after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer.

    References: http://securityreason.com/securityalert/4204, http://securityreason.com/securityalert/4206, http://www.ivizsecurity.com/preboot-patch.html, http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf, http://www.securityfocus.com/archive/1/495726/100/0/threaded

    Affected packages

    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