CVE-2011-3414

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."

Category

7.8
CVSS
Severity: High
CVSS 2.0 •
EPSS 76.67% Top 5%
Vendor Advisory microsoft.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14588 vdb entry signature
http://www.nruns.com/_downloads/advisory28122011.pdf
http://www.us-cert.gov/cas/techalerts/TA11-347A.html third party advisory us government resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-100 vendor advisory
http://www.kb.cert.org/vuls/id/903934 third party advisory us government resource
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html mailing list
http://www.ocert.org/advisories/ocert-2011-003.html

Frequently Asked Questions

What is the severity of CVE-2011-3414?
CVE-2011-3414 has been scored as a high severity vulnerability.
How to fix CVE-2011-3414?
To fix CVE-2011-3414, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-3414 being actively exploited in the wild?
It is possible that CVE-2011-3414 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~77% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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