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."
References
- oval:org.mitre.oval:def:14588 vdb-entry signature
- http://www.nruns.com/_downloads/advisory28122011.pdf
- TA11-347A third-party-advisory
- MS11-100 vendor-advisory
- VU#903934 third-party-advisory
- 20111228 n.runs-SA-2011.004 - web programming languages and platforms - DoS through hash table mailing-list
- http://www.ocert.org/advisories/ocert-2011-003.html