Subject: [ASA-202106-37] aspnet-runtime: denial of service

Arch Linux Security Advisory ASA-202106-37
==========================================

Severity: Medium
Date    : 2021-06-15
CVE-ID  : CVE-2021-31957
Package : aspnet-runtime
Type    : denial of service
Remote  : Yes
Link    : https://security.archlinux.org/AVG-2046

Summary
=======

The package aspnet-runtime before version 5.0.7.sdk204-1 is vulnerable
to denial of service.

Resolution
==========

Upgrade to 5.0.7.sdk204-1.

# pacman -Syu "aspnet-runtime>=5.0.7.sdk204-1"

The problem has been fixed upstream in version 5.0.7.sdk204.

Workaround
==========

None.

Description
===========

A denial of service vulnerability exists in .NET 5.0 before Runtime
5.0.7 and SDK 5.0.204 as well as .NET Core 3.1 before Runtime 3.1.16
and SDK 3.1.116 in ASP.NET.

Impact
======

A remote attacker could crash an ASP.NET application.

References
==========

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31957
https://github.com/dotnet/announcements/issues/189
https://security.archlinux.org/CVE-2021-31957