Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
Red Hat Customer Portal
  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
  • Products & Services

    Products

    Support

    • Production Support
    • Development Support
    • Product Life Cycles

    Services

    • Consulting
    • Technical Account Management
    • Training & Certifications

    Documentation

    • Red Hat Enterprise Linux
    • Red Hat JBoss Enterprise Application Platform
    • Red Hat OpenStack Platform
    • Red Hat OpenShift Container Platform
    All Documentation

    Ecosystem Catalog

    • Red Hat Partner Ecosystem
    • Partner Resources
  • Tools

    Tools

    • Troubleshoot a product issue
    • Packages
    • Errata

    Customer Portal Labs

    • Configuration
    • Deployment
    • Security
    • Troubleshoot
    All labs

    Red Hat Insights

    Increase visibility into IT operations to detect and resolve technical issues before they impact your business.

    Learn More
    Go to Insights
  • Security

    Red Hat Product Security Center

    Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities.

    Product Security Center

    Security Updates

    • Security Advisories
    • Red Hat CVE Database
    • Security Labs

    Keep your systems secure with Red Hat's specialized responses to security vulnerabilities.

    View Responses

    Resources

    • Security Blog
    • Security Measurement
    • Severity Ratings
    • Backporting Policies
    • Product Signing (GPG) Keys
  • Community

    Customer Portal Community

    • Discussions
    • Private Groups
    Community Activity

    Customer Events

    • Red Hat Convergence
    • Red Hat Summit

    Stories

    • Red Hat Subscription Value
    • You Asked. We Acted.
    • Open Source Communities
Or troubleshoot an issue.

Select Your Language

  • English
  • 한국어
  • 日本語
  • 中文 (中国)

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Virtualization
  • Red Hat Identity Management
  • Red Hat Directory Server
  • Red Hat Certificate System
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Update Infrastructure
  • Red Hat Insights
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat CloudForms
  • Red Hat OpenStack Platform
  • Red Hat OpenShift Container Platform
  • Red Hat OpenShift Data Science
  • Red Hat OpenShift Online
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • Red Hat CodeReady Workspaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat Single Sign On
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Thorntail
  • Red Hat build of Eclipse Vert.x
  • Red Hat build of OpenJDK
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Integration
  • Red Hat Fuse
  • Red Hat AMQ
  • Red Hat 3scale API Management
  • Red Hat JBoss Data Virtualization
  • Red Hat Process Automation
  • Red Hat Process Automation Manager
  • Red Hat Decision Manager
All Products
Red Hat Product Errata RHSA-2021:0472 - Security Advisory
Issued:
2021-02-10
Updated:
2021-02-10

RHSA-2021:0472 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: .NET Core 3.1 on Red Hat Enterprise Linux security and bugfix update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for rh-dotnet31-dotnet is now available for .NET Core on Red Hat Enterprise Linux.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

.NET Core 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 Core that address a security vulnerability are now available. The updated versions are .NET Core SDK 3.1.112 and .NET Core Runtime 3.1.12.

Security Fix(es):

  • dotnet: certificate chain building recursion Denial of Service (CVE-2021-1721)

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.

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

Affected Products

  • dotNET on RHEL (for RHEL Server) 1 x86_64
  • dotNET on RHEL (for RHEL Workstation) 1 x86_64
  • dotNET on RHEL (for RHEL Compute Node) 1 x86_64

Fixes

  • BZ - 1926918 - CVE-2021-1721 dotnet: certificate chain building recursion Denial of Service

CVEs

  • CVE-2021-1721

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

dotNET on RHEL (for RHEL Server) 1

SRPM
rh-dotnet31-dotnet-3.1.112-1.el7_9.src.rpm SHA-256: f39f32132f728a02f63436de8776de76b9cbf62c9661ca6afffc132e281ad1cd
x86_64
rh-dotnet31-aspnetcore-runtime-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: a51ea620a6efea8c1c83de18aae0913e1289905a8c7a18a4a8dbfff80d62c33a
rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 5ff6a367fff67ea168a9b9f2e9da589b56cbed1029ff7b0a933d3fb06934a8bf
rh-dotnet31-dotnet-3.1.112-1.el7_9.x86_64.rpm SHA-256: 936db5ab89277b9d2f98b391ac7cf759caacc22ff26590a0086ce85707d73b0b
rh-dotnet31-dotnet-apphost-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 8406965cdb139710e34860c452c1ba5af39bd2f6ed898d9b8059b29ac5886d8c
rh-dotnet31-dotnet-debuginfo-3.1.112-1.el7_9.x86_64.rpm SHA-256: ff7aa91e1e55d0a1c4053cd005ecdacff77907842d800177c2505464e1fdccd7
rh-dotnet31-dotnet-host-3.1.12-1.el7_9.x86_64.rpm SHA-256: 3feb852c736c864fd30c008efab6deb1ea483c21c94733bff679d09d7b0537ef
rh-dotnet31-dotnet-hostfxr-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 0e6239abec25cf8bf52c9806a24de817f4cfad0a41dee58eb96a732556321a92
rh-dotnet31-dotnet-runtime-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 99074cbd1be5f715732346f9ccdf19a9805edc70b3ce0aafc726c76ab73162b0
rh-dotnet31-dotnet-sdk-3.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: 599897ef6cd88e29dc62650dc54f75621ca14db7c8cd73bd5f5b120af2f61e39
rh-dotnet31-dotnet-targeting-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: dcf9b462f189e004129ec855e04fa8a4f205b9b9933843d76e5eb6c7aa098138
rh-dotnet31-dotnet-templates-3.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: ba5507acd01a49faf3b5d148635a1945cd19fe01748ff3096cc28d6e8d272ad9
rh-dotnet31-netstandard-targeting-pack-2.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: 89379cfc9c3c4211996da6b00a4a82ba31a8d337fd175dd3b0e3b11765046c01

dotNET on RHEL (for RHEL Workstation) 1

SRPM
rh-dotnet31-dotnet-3.1.112-1.el7_9.src.rpm SHA-256: f39f32132f728a02f63436de8776de76b9cbf62c9661ca6afffc132e281ad1cd
x86_64
rh-dotnet31-aspnetcore-runtime-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: a51ea620a6efea8c1c83de18aae0913e1289905a8c7a18a4a8dbfff80d62c33a
rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 5ff6a367fff67ea168a9b9f2e9da589b56cbed1029ff7b0a933d3fb06934a8bf
rh-dotnet31-dotnet-3.1.112-1.el7_9.x86_64.rpm SHA-256: 936db5ab89277b9d2f98b391ac7cf759caacc22ff26590a0086ce85707d73b0b
rh-dotnet31-dotnet-apphost-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 8406965cdb139710e34860c452c1ba5af39bd2f6ed898d9b8059b29ac5886d8c
rh-dotnet31-dotnet-debuginfo-3.1.112-1.el7_9.x86_64.rpm SHA-256: ff7aa91e1e55d0a1c4053cd005ecdacff77907842d800177c2505464e1fdccd7
rh-dotnet31-dotnet-host-3.1.12-1.el7_9.x86_64.rpm SHA-256: 3feb852c736c864fd30c008efab6deb1ea483c21c94733bff679d09d7b0537ef
rh-dotnet31-dotnet-hostfxr-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 0e6239abec25cf8bf52c9806a24de817f4cfad0a41dee58eb96a732556321a92
rh-dotnet31-dotnet-runtime-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 99074cbd1be5f715732346f9ccdf19a9805edc70b3ce0aafc726c76ab73162b0
rh-dotnet31-dotnet-sdk-3.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: 599897ef6cd88e29dc62650dc54f75621ca14db7c8cd73bd5f5b120af2f61e39
rh-dotnet31-dotnet-targeting-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: dcf9b462f189e004129ec855e04fa8a4f205b9b9933843d76e5eb6c7aa098138
rh-dotnet31-dotnet-templates-3.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: ba5507acd01a49faf3b5d148635a1945cd19fe01748ff3096cc28d6e8d272ad9
rh-dotnet31-netstandard-targeting-pack-2.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: 89379cfc9c3c4211996da6b00a4a82ba31a8d337fd175dd3b0e3b11765046c01

dotNET on RHEL (for RHEL Compute Node) 1

SRPM
rh-dotnet31-dotnet-3.1.112-1.el7_9.src.rpm SHA-256: f39f32132f728a02f63436de8776de76b9cbf62c9661ca6afffc132e281ad1cd
x86_64
rh-dotnet31-aspnetcore-runtime-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: a51ea620a6efea8c1c83de18aae0913e1289905a8c7a18a4a8dbfff80d62c33a
rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 5ff6a367fff67ea168a9b9f2e9da589b56cbed1029ff7b0a933d3fb06934a8bf
rh-dotnet31-dotnet-3.1.112-1.el7_9.x86_64.rpm SHA-256: 936db5ab89277b9d2f98b391ac7cf759caacc22ff26590a0086ce85707d73b0b
rh-dotnet31-dotnet-apphost-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 8406965cdb139710e34860c452c1ba5af39bd2f6ed898d9b8059b29ac5886d8c
rh-dotnet31-dotnet-debuginfo-3.1.112-1.el7_9.x86_64.rpm SHA-256: ff7aa91e1e55d0a1c4053cd005ecdacff77907842d800177c2505464e1fdccd7
rh-dotnet31-dotnet-host-3.1.12-1.el7_9.x86_64.rpm SHA-256: 3feb852c736c864fd30c008efab6deb1ea483c21c94733bff679d09d7b0537ef
rh-dotnet31-dotnet-hostfxr-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 0e6239abec25cf8bf52c9806a24de817f4cfad0a41dee58eb96a732556321a92
rh-dotnet31-dotnet-runtime-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: 99074cbd1be5f715732346f9ccdf19a9805edc70b3ce0aafc726c76ab73162b0
rh-dotnet31-dotnet-sdk-3.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: 599897ef6cd88e29dc62650dc54f75621ca14db7c8cd73bd5f5b120af2f61e39
rh-dotnet31-dotnet-targeting-pack-3.1-3.1.12-1.el7_9.x86_64.rpm SHA-256: dcf9b462f189e004129ec855e04fa8a4f205b9b9933843d76e5eb6c7aa098138
rh-dotnet31-dotnet-templates-3.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: ba5507acd01a49faf3b5d148635a1945cd19fe01748ff3096cc28d6e8d272ad9
rh-dotnet31-netstandard-targeting-pack-2.1-3.1.112-1.el7_9.x86_64.rpm SHA-256: 89379cfc9c3c4211996da6b00a4a82ba31a8d337fd175dd3b0e3b11765046c01

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

Red Hat

Quick Links

  • Downloads
  • Subscriptions
  • Support Cases
  • Customer Service
  • Product Documentation

Help

  • Contact Us
  • Customer Portal FAQ
  • Log-in Assistance

Site Info

  • Trust Red Hat
  • Browser Support Policy
  • Accessibility
  • Awards and Recognition
  • Colophon

Related Sites

  • redhat.com
  • developers.redhat.com
  • connect.redhat.com
  • cloud.redhat.com

About

  • Red Hat Subscription Value
  • About Red Hat
  • Red Hat Jobs
Copyright © 2022 Red Hat, Inc.
  • Privacy Statement
  • Customer Portal Terms of Use
  • All Policies and Guidelines
Red Hat Summit
Twitter