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    CVE-2003-0818

    Multiple integer overflows in Microsoft ASN.1 library (MSASN1.DLL), as used in LSASS.EXE, CRYPT32.DLL, and other Microsoft executables and libraries on Windows NT 4.0, 2000, and XP, allow remote attackers to execute arbitrary code via ASN.1 BER encodings with (1) very large length fields that cause arbitrary heap data to be overwritten, or (2) modified bit strings.

    Published:Feb 11, 2004
    Last Modified:Apr 16, 2026
    EPS:Feb 11, 2004
    EPSS Score:0.89651
    CVSS Score:7.5

    Affected Products

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

    Exploits

    https://www.exploit-db.com/exploits/153https://www.exploit-db.com/exploits/16377https://www.exploit-db.com/exploits/3022

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    References

    http://marc.info/?l=bugtraq&m=107643836125615&w=2
    http://marc.info/?l=bugtraq&m=107643892224825&w=2
    http://marc.info/?l=ntbugtraq&m=107650972617367&w=2
    http://marc.info/?l=ntbugtraq&m=107650972723080&w=2
    http://www.kb.cert.org/vuls/id/216324
    http://www.kb.cert.org/vuls/id/583108
    http://www.us-cert.gov/cas/techalerts/TA04-041A.html
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-007
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A653
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A796
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A797
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A799
    http://marc.info/?l=bugtraq&m=107643836125615&w=2
    http://marc.info/?l=bugtraq&m=107643892224825&w=2
    http://marc.info/?l=ntbugtraq&m=107650972617367&w=2
    http://marc.info/?l=ntbugtraq&m=107650972723080&w=2
    http://www.kb.cert.org/vuls/id/216324
    http://www.kb.cert.org/vuls/id/583108
    http://www.us-cert.gov/cas/techalerts/TA04-041A.html
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-007
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A653
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A796
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A797
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A799

    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