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RedHat: RHSA-2020-2939-01 Critical: .NET Core 3.1 Remote Execution

red hat
Calendar Grey July 15, 2020
Dist Redhat Esm H88
The recent .NET Core 3.1 security update for Red Hat Enterprise Linux resolves multiple vulnerabilities, enhancing system and application security against exploitation
An update for rh-dotnet31-dotnet is now available for .NET Core 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 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.
Security Fix(es):
* .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 critical remote code execution red hat enterprise dotnet core

References

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

Package List

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source: rh-dotnet31-dotnet-3.1.106-1.el7.src.rpm
x86_64: rh-dotnet31-aspnetcore-runtime-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-3.1.106-1.el7.x86_64.rpm rh-dotnet31-dotnet-apphost-pack-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-debuginfo-3.1.106-1.el7.x86_64.rpm rh-dotnet31-dotnet-host-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-hostfxr-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-runtime-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-sdk-3.1-3.1.106-1.el7.x86_64.rpm rh-dotnet31-dotnet-targeting-pack-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-templates-3.1-3.1.106-1.el7.x86_64.rpm rh-dotnet31-netstandard-targeting-pack-2.1-3.1.106-1.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source: rh-dotnet31-dotnet-3.1.106-1.el7.src.rpm
x86_64: rh-dotnet31-aspnetcore-runtime-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-3.1.106-1.el7.x86_64.rpm rh-dotnet31-dotnet-apphost-pack-3.1-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-debuginfo-3.1.106-1.el7.x86_64.rpm rh-dotnet31-dotnet-host-3.1.6-1.el7.x86_64.rpm rh-dotnet31-dotnet-hostfxr-3.1-3.1.6-1.el7.x86_64.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2939-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2939
Issue date: 2020-07-15

Topic

An update for rh-dotnet31-dotnet is now available for .NET Core on Red HatEnterprise Linux.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 critical remote code execution red hat enterprise dotnet core

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

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

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