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====================================================================                   
Red Hat Security Advisory

Synopsis:          Important: .NET 6.0 on RHEL 7 security and bugfix update
Advisory ID:       RHSA-2022:2195-01
Product:           .NET Core on Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:2195
Issue date:        2022-05-11
CVE Names:         CVE-2022-23267 CVE-2022-29117 CVE-2022-29145
====================================================================
1. Summary:

An update for .NET 6.0 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. 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

3. Description:

.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 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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

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

6. Package List:

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
rh-dotnet60-dotnet-6.0.105-1.el7_9.src.rpm

x86_64:
rh-dotnet60-aspnetcore-runtime-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-apphost-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-debuginfo-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-host-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-hostfxr-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-runtime-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-source-built-artifacts-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-targeting-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-templates-6.0-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-netstandard-targeting-pack-2.1-6.0.105-1.el7_9.x86_64.rpm

.NET Core on Red Hat Enterprise Linux Server (v. 7):

Source:
rh-dotnet60-dotnet-6.0.105-1.el7_9.src.rpm

x86_64:
rh-dotnet60-aspnetcore-runtime-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-apphost-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-debuginfo-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-host-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-hostfxr-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-runtime-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-source-built-artifacts-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-targeting-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-templates-6.0-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-netstandard-targeting-pack-2.1-6.0.105-1.el7_9.x86_64.rpm

.NET Core on Red Hat Enterprise Linux Workstation (v. 7):

Source:
rh-dotnet60-dotnet-6.0.105-1.el7_9.src.rpm

x86_64:
rh-dotnet60-aspnetcore-runtime-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-apphost-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-debuginfo-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-host-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-hostfxr-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-runtime-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-source-built-artifacts-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-targeting-pack-6.0-6.0.5-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-templates-6.0-6.0.105-1.el7_9.x86_64.rpm
rh-dotnet60-netstandard-targeting-pack-2.1-6.0.105-1.el7_9.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. 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

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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