Alerts This Week
Warning Icon 1 714
Alerts This Week
Warning Icon 1 714

Red Hat Enterprise Linux: RHSA-2021-0794-01 Critical Remote Code Execution

red hat
Calendar Grey March 9, 2021
Dist Redhat Esm H88
A significant safety alert regarding .NET 5.0 on Red Hat Enterprise Linux has been issued, highlighting a severe vulnerability that could enable remote code execution.
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 5.0.104 and .NET Runtime 5.0.4.
Security Fix(es):
* dotnet: System.Text.Encodings.Web Remote Code Execution (CVE-2021-26701)
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.v

Topics%20covered

Topics Covered

security advisory security update remote code execution Red Hat Enterprise Linux system update important security security impact important advisory .NET Core

References

https://access.redhat.com/security/cve/CVE-2021-26701 https://access.redhat.com/security/updates/classification/#important

Package List

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source: rh-dotnet50-dotnet-5.0.104-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.104-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.104-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-hostfxr-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-runtime-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-5.0.104-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-targeting-pack-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-templates-5.0-5.0.104-1.el7_9.x86_64.rpm rh-dotnet50-netstandard-targeting-pack-2.1-5.0.104-1.el7_9.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source: rh-dotnet50-dotnet-5.0.104-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.104-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.4-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.104-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.4-1.el7_9.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0794-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0794
Issue date: 2021-03-09

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 security update remote code execution Red Hat Enterprise Linux system update important security security impact important advisory .NET 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

1933740 - CVE-2021-26701 dotnet: System.Text.Encodings.Web Remote Code Execution

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here