CVE-2011-3414

The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters, aka "Collisions in HashTable May Cause DoS Vulnerability."

• CWE-399

• http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
• http://www.kb.cert.org/vuls/id/903934US Government Resource
• http://www.nruns.com/_downloads/advisory28122011.pdf
• http://www.ocert.org/advisories/ocert-2011-003.html
• http://www.us-cert.gov/cas/techalerts/TA11-347A.htmlUS Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588
• http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
• http://www.kb.cert.org/vuls/id/903934US Government Resource
• http://www.nruns.com/_downloads/advisory28122011.pdf
• http://www.ocert.org/advisories/ocert-2011-003.html
• http://www.us-cert.gov/cas/techalerts/TA11-347A.htmlUS Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588

Published

Dec 30, 2011

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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