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    CVE-2013-6999

    The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object. NOTE: the vendor reportedly disputes the significance of this report, stating that "it appears to be a local DOS ... we don't consider it a security vulnerability.

    Published:Dec 7, 2013
    Last Modified:Apr 11, 2025
    EPS:Dec 7, 2013
    EPSS Score:0.00527
    CVSS Score:4

    Affected Products

    Vendor
    Microsoft
    Product
    Windows Server 2008

    Exploits

    http://pastebin.com/raw.php?i=we0ZSQC0http://pastebin.com/raw.php?i=we0ZSQC0

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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