CVE-2011-3414

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Summary

CVECVE-2011-3414
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-12-30 01:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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."

Risk And Classification

Primary CVSS: v2.0 7.8 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Microsoft Windows 7 - All All All
Operating System Microsoft Windows 7 - sp1 x64 All
Operating System Microsoft Windows 7 - sp1 x86 All
Operating System Microsoft Windows Server 2003 All sp2 All All
Operating System Microsoft Windows Server 2008 All r2 x64 All
Operating System Microsoft Windows Server 2008 All sp2 itanium All
Operating System Microsoft Windows Server 2008 - sp2 x64 All
Operating System Microsoft Windows Server 2008 - sp2 x86 All
Operating System Microsoft Windows Server 2008 r2 All itanium All
Operating System Microsoft Windows Vista All sp2 All All
Operating System Microsoft Windows Vista - sp2 All All
Operating System Microsoft Windows Xp All sp2 professional_x64 All
Operating System Microsoft Windows Xp sp3 unknown english All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oCERT.org - oCERT Advisories af854a3a-2127-422b-91ae-364da2661108 www.ocert.org
Microsoft Security Bulletin MS11-100 - Critical | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
VU#903934 - Hash table implementations vulnerable to algorithmic complexity attacks af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org US Government Resource
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Best 7 Best Internet Security Software in 2019 af854a3a-2127-422b-91ae-364da2661108 www.nruns.com
US-CERT Technical Cyber Security Alert TA11-347A -- Microsoft Updates for Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov US Government Resource
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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