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    CVE-2006-2374

    The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows local users to cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."

    Published:Jun 13, 2006
    Last Modified:Apr 16, 2026
    EPS:Jun 13, 2006
    EPSS Score:0.00562
    CVSS Score:5.5

    Affected Products

    Vendor
    Microsoft
    Product
    Windows 2000
    Vendor
    Microsoft
    Product
    Windows 2003 Server
    Vendor
    Microsoft
    Product
    Windows Xp

    Exploits

    http://www.securityfocus.com/bid/18357http://www.securityfocus.com/bid/18357https://www.exploit-db.com/exploits/28001https://www.exploit-db.com/exploits/1911

    Common Weakness Enumeration

    CWE-667 Improper Locking

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    References

    http://secunia.com/advisories/20635
    http://securitytracker.com/id?1016288
    http://www.idefense.com/intelligence/vulnerabilities/display.php?id=409
    http://www.osvdb.org/26439
    http://www.securityfocus.com/bid/18357
    http://www.vupen.com/english/advisories/2006/2327
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030
    https://exchange.xforce.ibmcloud.com/vulnerabilities/26830
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1827
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1841
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1850
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1979
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2030
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2060
    http://secunia.com/advisories/20635
    http://securitytracker.com/id?1016288
    http://www.idefense.com/intelligence/vulnerabilities/display.php?id=409
    http://www.osvdb.org/26439
    http://www.securityfocus.com/bid/18357
    http://www.vupen.com/english/advisories/2006/2327
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-030
    https://exchange.xforce.ibmcloud.com/vulnerabilities/26830
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1827
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1841
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1850
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1979
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2030
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2060

    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