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Red Hat: RHSA-2021-2351 Important: .NET 5.0 Denial of Service

red hat
Calendar Grey June 8, 2021
Dist Redhat Esm H88
A crucial announcement regarding .NET 5.0 applicable to RHEL 7, focusing on essential security vulnerabilities and necessary patches.
An update for rh-dotnet50-dotnet is now available for .NET on Red Hat Enterprise Linux

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 5.0.204 and .NET Runtime 5.0.7.
Security Fix(es):
* dotnet: ASP.NET Core Client Disconnect Denial of Service (CVE-2021-31957)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat update security impact Denial of Service ASP.NET

References

https://access.redhat.com/security/cve/CVE-2021-31957 https://access.redhat.com/security/updates/classification/#important

Package List

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source: rh-dotnet50-dotnet-5.0.204-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.204-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.204-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-hostfxr-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-runtime-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-5.0.204-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-targeting-pack-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-templates-5.0-5.0.204-1.el7_9.x86_64.rpm rh-dotnet50-netstandard-targeting-pack-2.1-5.0.204-1.el7_9.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source: rh-dotnet50-dotnet-5.0.204-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.204-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.7-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.204-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.7-1.el7_9.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2351-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2351
Issue date: 2021-06-08

Topic

An update for rh-dotnet50-dotnet is now available for .NET on Red HatEnterprise Linux.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat update security impact Denial of Service ASP.NET

Relevant Releases Architectures

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

.NET Core on Red Hat Enterprise Linux Server (v. 7) - x86_64

.NET Core on Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Bugs Fixed

1966990 - CVE-2021-31957 dotnet: ASP.NET Core Client Disconnect Denial of Service

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