[ASA-202106-38] aspnet-runtime-3.1: denial of service

[Santiago Torres-Arias]

Arch Linux Security Advisory ASA-202106-38
==========================================

Severity: Medium
Date    : 2021-06-15
CVE-ID  : CVE-2021-31957
Package : aspnet-runtime-3.1
Type    : denial of service
Remote  : Yes
Link    : https://security.archlinux.org/AVG-2047

Summary
=======

The package aspnet-runtime-3.1 before version 3.1.16.sdk116-1 is
vulnerable to denial of service.

Resolution
==========

Upgrade to 3.1.16.sdk116-1.

# pacman -Syu "aspnet-runtime-3.1>=3.1.16.sdk116-1"

The problem has been fixed upstream in version 3.1.16.sdk116.

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
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