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Red Hat 9 RHSA-2022-4588 Important: .NET 6.0 DoS Security Updates

red hat
Calendar Grey June 3, 2022
Dist Redhat Esm H88
The release of .NET 6.0 for Red Hat provides essential security updates and boosts performance, catering to the needs of developers and enterprises.
An update for .NET 6.0 is now available for Red Hat Enterprise Linux 9

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 Core that address a security vulnerability are now available. The updated versions are .NET Core SDK 6.0.105 and .NET Core Runtime 6.0.5.
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.
Bug Fix(es):
* Update .NET 6.0 to SDK 6.0.104 and Runtime 6.0.4 (BZ#2080460)

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

Red Hat Enterprise Linux AppStream (v. 9):
Source: dotnet6.0-6.0.105-1.el9_0.src.rpm
aarch64: aspnetcore-runtime-6.0-6.0.5-1.el9_0.aarch64.rpm aspnetcore-targeting-pack-6.0-6.0.5-1.el9_0.aarch64.rpm dotnet-apphost-pack-6.0-6.0.5-1.el9_0.aarch64.rpm dotnet-apphost-pack-6.0-debuginfo-6.0.5-1.el9_0.aarch64.rpm dotnet-host-6.0.5-1.el9_0.aarch64.rpm dotnet-host-debuginfo-6.0.5-1.el9_0.aarch64.rpm dotnet-hostfxr-6.0-6.0.5-1.el9_0.aarch64.rpm dotnet-hostfxr-6.0-debuginfo-6.0.5-1.el9_0.aarch64.rpm dotnet-runtime-6.0-6.0.5-1.el9_0.aarch64.rpm dotnet-runtime-6.0-debuginfo-6.0.5-1.el9_0.aarch64.rpm dotnet-sdk-6.0-6.0.105-1.el9_0.aarch64.rpm dotnet-sdk-6.0-debuginfo-6.0.105-1.el9_0.aarch64.rpm dotnet-targeting-pack-6.0-6.0.5-1.el9_0.aarch64.rpm dotnet-templates-6.0-6.0.105-1.el9_0.aarch64.rpm dotnet6.0-debuginfo-6.0.105-1.el9_0.aarch64.rpm dotnet6.0-debugsource-6.0.105-1.el9_0.aarch64.rpm netstandard-targeting-pack-2.1-6.0.105-1.el9_0.aarch64.rpm
s390x: aspnetcore-runtime-6.0-6.0.5-1.el9_0.s390x.rpm aspnetcore-targeting-pack-6.0-6.0.5-1.el9_0.s390x.rpm dotnet-apphost-pack-6.0-6.0.5-1.el9_0.s390x.rpm dotnet-apphost-pack-6.0-debuginfo-6.0.5-1.el9_0.s390x.rpm dotnet-host-6.0.5-1.el9_0.s390x.rpm dotnet-host-debuginfo-6.0.5-1.el9_0.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:4588-01
Product: Red Hat Enterprise Linux
Issue date: 2022-05-18

Topic

An update for .NET 6.0 is now available for Red Hat Enterprise Linux 9.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.

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 9) - aarch64, s390x, x86_64

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, s390x, 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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