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Red Hat: RHSA-2022-2194-01 Important: .NET Core 3.1 DoS Security Fix

red hat
Calendar Grey May 11, 2022
Dist Redhat Esm H88
Essential patch for .NET Core 3.1 on RHEL 7 addressing significant security vulnerabilities and improving overall reliability.
An update for .NET Core 3.1 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 3.1.419 and .NET Core Runtime 3.1.25.
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 Red Hat update critical DoS security impact dotnet

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-dotnet31-dotnet-3.1.419-1.el7_9.src.rpm
x86_64: rh-dotnet31-aspnetcore-runtime-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-3.1.419-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-apphost-pack-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-debuginfo-3.1.419-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-host-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-hostfxr-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-runtime-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-sdk-3.1-3.1.419-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-sdk-3.1-source-built-artifacts-3.1.419-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-targeting-pack-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-templates-3.1-3.1.419-1.el7_9.x86_64.rpm rh-dotnet31-netstandard-targeting-pack-2.1-3.1.419-1.el7_9.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source: rh-dotnet31-dotnet-3.1.419-1.el7_9.src.rpm
x86_64: rh-dotnet31-aspnetcore-runtime-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.25-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-3.1.419-1.el7_9.x86_64.rpm rh-dotnet31-dotnet-apphost-pack-3.1-3.1.25-1.el7_9.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:2194-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:2194
Issue date: 2022-05-11

Topic

An update for .NET Core 3.1 is now available for Red Hat Enterprise Linux7.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 Red Hat update critical DoS security impact dotnet

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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