A denial of service vulnerability exists when .NET and .NET Core improperly process XML documents. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET application. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to a .NET (or .NET core) application. External References: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0765 https://github.com/dotnet/announcements/issues/67
This is an issue in the System.Security.Cryptography.Xml package, which is not shipped directly. If you use the System.Security.Cryptography.Xml package in your projects, ensure that you use version 4.4.2 or later.