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Red Hat 7: RHSA-2022:2196-01 Important: .NET 5.0 DoS Fixes

red hat
Calendar Grey May 11, 2022
Dist Redhat Esm H88
Crucial .NET 5.0 security and patch update for RHEL 7 containing essential resolutions for DoS vulnerabilities and performance enhancements.
An update for .NET 5.0 is now available for Red Hat Enterprise Linux 7

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 5.0.214 and .NET Core Runtime 5.0.17.
Security Fix(es):
* dotnet: excess memory allocation via HttpClient causes DoS (CVE-2022-23267)
* dotnet: malicious content causes high CPU and memory usage (CVE-2022-29117)
* dotnet: parsing HTML causes Denial of Service (CVE-2022-29145)
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 DoS issue Red Hat Enterprise Linux security impact bugfix important update .NET Core

References

https://access.redhat.com/security/cve/CVE-2022-23267 https://access.redhat.com/security/cve/CVE-2022-29117 https://access.redhat.com/security/cve/CVE-2022-29145 https://access.redhat.com/security/updates/classification/#important

Package List

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source: rh-dotnet50-dotnet-5.0.214-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.214-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.214-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-hostfxr-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-runtime-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-5.0.214-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-source-built-artifacts-5.0.214-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-targeting-pack-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-templates-5.0-5.0.214-1.el7_9.x86_64.rpm rh-dotnet50-netstandard-targeting-pack-2.1-5.0.214-1.el7_9.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source: rh-dotnet50-dotnet-5.0.214-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.17-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.214-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.17-1.el7_9.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:2196-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:2196
Issue date: 2022-05-11

Topic

An update for .NET 5.0 is now available for Red Hat Enterprise Linux 7.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 DoS issue Red Hat Enterprise Linux security impact bugfix important update .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

2083647 - CVE-2022-29117 dotnet: malicious content causes high CPU and memory usage

2083649 - CVE-2022-29145 dotnet: parsing HTML causes Denial of Service

2083650 - CVE-2022-23267 dotnet: excess memory allocation via HttpClient causes DoS

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