Microsoft .NET Framework 4.6, 4.6.1, 4.6.2, and 4.7 allow an attacker to send specially crafted requests to a .NET web application, resulting in denial of service, aka .NET Denial of Service Vulnerability.
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8585
https://access.redhat.com/errata/RHSA-2017:3248