Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly use a hash table for request data, which allows remote attackers to cause a denial of service (resource consumption and ASP.NET performance degradation) via crafted requests, aka ".NET Framework Denial of Service Vulnerability."

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-4072
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-053
• http://blogs.technet.com/b/srd/archive/2014/09/09/assessing-risk-for-the-september-2014-security-updates.aspx
• http://www.securityfocus.com/bid/69603
• http://www.securitytracker.com/id/1030819