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CVE-2011-3414

UnknownEPSS 58.89%

Last modified

CVE-2011-3414 is a vulnerability of currently unknown severity. 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.". EPSS estimates a 58.89% chance of exploitation in the next 30 days.

Description

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."

Metrics

EPSS Probability
58.89%

99.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MicrosoftWindows 7All versions—
MicrosoftWindows Server 2003All versionsSp2
MicrosoftWindows Server 2008All versionsR2
MicrosoftWindows Server 2008r2—
MicrosoftWindows VistaAll versionsSp2
MicrosoftWindows XpAll versionsSp2
MicrosoftWindows Xpsp3Unknown

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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."
How severe is CVE-2011-3414?
Severity scoring for CVE-2011-3414 is pending analysis. The EPSS model estimates a 58.89% probability of exploitation in the next 30 days.
How do I fix CVE-2011-3414?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-3414?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST