medium
5
CWE
NVD-CWE-Other 476
Advisory Published
Updated

CVE-2002-1561: Null Pointer Dereference

First published: Wed Mar 26 2003(Updated: )

The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service) via a malformed packet to the RPC Endpoint Mapper at TCP port 135, which triggers a null pointer dereference.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Microsoft Windows NT=4.0-sp5
Microsoft Windows Terminal Services using RDP=sp1
Microsoft Windows XP=sp1
Microsoft Windows NT=4.0-sp3
Microsoft Windows NT=4.0-sp6a
Microsoft Windows XP=gold
Microsoft Windows 2000
Microsoft Windows NT=4.0-sp6
Microsoft Windows XP
Microsoft Windows NT=4.0
Microsoft Windows NT=4.0-sp1
Microsoft Windows NT=4.0-sp3
Microsoft Windows NT=4.0-sp6
Microsoft Windows NT=4.0-sp4
Microsoft Windows NT=4.0-sp5
Microsoft Windows 2000=sp2
Microsoft Windows NT=4.0-sp6
Microsoft Windows NT=4.0
Microsoft Windows NT=4.0-sp4
Microsoft Windows NT=4.0-sp2
Microsoft Windows Terminal Services using RDP=sp3
Microsoft Windows NT=4.0-sp6a
Microsoft Windows NT=4.0
Microsoft Windows NT=4.0-sp6a
Microsoft Windows NT=4.0-sp4
Microsoft Windows NT=4.0-sp2
Microsoft Windows NT=4.0-sp1
Microsoft Windows 2000=sp1
Microsoft Windows NT=4.0-sp4
Microsoft Windows NT=4.0-sp6
Microsoft Windows XP
Microsoft Windows NT=4.0-sp3
Microsoft Windows NT=4.0-sp1
Microsoft Windows NT=4.0-sp2
Microsoft Windows NT=4.0-sp5
Microsoft Windows NT=4.0-sp1
Microsoft Windows XP=sp1
Microsoft Windows NT=4.0
Microsoft Windows NT=4.0-sp6a
Microsoft Windows Terminal Services using RDP
Microsoft Windows NT=4.0-sp3
Microsoft Windows Terminal Services using RDP=sp2
Microsoft Windows NT=4.0-sp5
Microsoft Windows NT=4.0-sp2
Microsoft Windows 2000=sp3

Remedy

http://www.securityfocus.com/bid/6005

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2002-1561?

    CVE-2002-1561 has been classified as a high severity vulnerability due to its ability to cause a denial of service.

  • How do I fix CVE-2002-1561?

    To mitigate CVE-2002-1561, apply the necessary patches provided by Microsoft for affected Windows versions like Windows 2000 and Windows XP.

  • What systems are affected by CVE-2002-1561?

    CVE-2002-1561 affects multiple systems including Windows NT 4.0, Windows 2000, and Windows XP across various service packs.

  • What type of attack does CVE-2002-1561 enable?

    CVE-2002-1561 enables remote attackers to execute a denial-of-service attack by sending a malformed packet to the RPC Endpoint Mapper.

  • Is CVE-2002-1561 still a threat today?

    CVE-2002-1561 is not a significant threat today as its affected software versions are largely outdated and no longer supported by Microsoft.

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