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Test your applicationsUpgrade RHEL:8 dotnet to version 0:2.1.507-2.el8_0 or higher.
This issue was patched in RHSA-2019:1259.
Note: Versions mentioned in the description apply only to the upstream dotnet package and not the dotnet package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
A denial of service vulnerability exists when .NET Framework or .NET Core improperly handle web requests, aka '.Net Framework and .Net Core Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0820, CVE-2019-0981.