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Red Hat Enterprise Linux 8: RHSA-2020-2954-01 Critical: .NET Core RCE

red hat
Calendar Grey July 15, 2020
Dist Redhat Esm H88
A new release has been issued for .NET Core 3.1 on RHEL 8, classified as critical due to security concerns.
An update for .NET Core 3.1 is now available for Red Hat Enterprise Linux 8

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 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 3.1.106 and .NET Core Runtime 3.1.6.
* .NET Core: XML source markup processing remote code execution (CVE-2020-1147)
Default inclusions for applications built with .NET Core have been updated to reference the newest versions and their security fixes.
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 critical remote code execution bugfix .NET Core

References

https://access.redhat.com/security/cve/CVE-2020-1147 https://access.redhat.com/security/updates/classification#critical

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: dotnet3.1-3.1.106-1.el8_2.src.rpm
x86_64: aspnetcore-runtime-3.1-3.1.6-1.el8_2.x86_64.rpm aspnetcore-targeting-pack-3.1-3.1.6-1.el8_2.x86_64.rpm dotnet-3.1.106-1.el8_2.x86_64.rpm dotnet-apphost-pack-3.1-3.1.6-1.el8_2.x86_64.rpm dotnet-apphost-pack-3.1-debuginfo-3.1.6-1.el8_2.x86_64.rpm dotnet-host-3.1.6-1.el8_2.x86_64.rpm dotnet-host-debuginfo-3.1.6-1.el8_2.x86_64.rpm dotnet-hostfxr-3.1-3.1.6-1.el8_2.x86_64.rpm dotnet-hostfxr-3.1-debuginfo-3.1.6-1.el8_2.x86_64.rpm dotnet-runtime-3.1-3.1.6-1.el8_2.x86_64.rpm dotnet-runtime-3.1-debuginfo-3.1.6-1.el8_2.x86_64.rpm dotnet-sdk-3.1-3.1.106-1.el8_2.x86_64.rpm dotnet-sdk-3.1-debuginfo-3.1.106-1.el8_2.x86_64.rpm dotnet-targeting-pack-3.1-3.1.6-1.el8_2.x86_64.rpm dotnet-templates-3.1-3.1.106-1.el8_2.x86_64.rpm dotnet3.1-debuginfo-3.1.106-1.el8_2.x86_64.rpm dotnet3.1-debugsource-3.1.106-1.el8_2.x86_64.rpm netstandard-targeting-pack-2.1-3.1.106-1.el8_2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2954-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2954
Issue date: 2020-07-15

Topic

An update for .NET Core 3.1 is now available for Red Hat Enterprise Linux8.Red Hat Product Security has rated this update as having a security impactof Critical. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat update critical remote code execution bugfix .NET Core

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - x86_64

Bugs Fixed

1856929 - CVE-2020-1147 dotnet: XML source markup processing remote code execution

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