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

Synopsis:          Important: .NET 5.0 security and bugfix update
Advisory ID:       RHSA-2022:0830-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0830
Issue date:        2022-03-10
CVE Names:         CVE-2020-8927 CVE-2022-24464 CVE-2022-24512 
====================================================================
1. Summary:

An update for .NET 5.0 is now available for Red Hat Enterprise Linux 8.

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:

Red Hat CodeReady Linux Builder (v. 8) - x86_64
Red Hat Enterprise Linux AppStream (v. 8) - x86_64

3. Description:

.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 security vulnerabilities are now
available. The updated versions are .NET SDK 5.0.212 and .NET Runtime
5.0.15.

Security Fix(es):

* dotnet: ASP.NET Denial of Service via FormPipeReader (CVE-2022-24464)

* dotnet: double parser stack buffer overrun (CVE-2022-24512)

* brotli: buffer overflow when input chunk is larger than 2GiB
(CVE-2020-8927)

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/):

1879225 - CVE-2020-8927 brotli: buffer overflow when input chunk is larger than 2GiB
2061847 - CVE-2022-24464 dotnet: ASP.NET Denial of Service via FormPipeReader
2061854 - CVE-2022-24512 dotnet: double parser stack buffer overrun

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dotnet5.0-5.0.212-1.el8_5.src.rpm

x86_64:
aspnetcore-runtime-5.0-5.0.15-1.el8_5.x86_64.rpm
aspnetcore-targeting-pack-5.0-5.0.15-1.el8_5.x86_64.rpm
dotnet-apphost-pack-5.0-5.0.15-1.el8_5.x86_64.rpm
dotnet-apphost-pack-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm
dotnet-hostfxr-5.0-5.0.15-1.el8_5.x86_64.rpm
dotnet-hostfxr-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm
dotnet-runtime-5.0-5.0.15-1.el8_5.x86_64.rpm
dotnet-runtime-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm
dotnet-sdk-5.0-5.0.212-1.el8_5.x86_64.rpm
dotnet-sdk-5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm
dotnet-targeting-pack-5.0-5.0.15-1.el8_5.x86_64.rpm
dotnet-templates-5.0-5.0.212-1.el8_5.x86_64.rpm
dotnet5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm
dotnet5.0-debugsource-5.0.212-1.el8_5.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

x86_64:
dotnet-apphost-pack-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm
dotnet-hostfxr-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm
dotnet-runtime-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm
dotnet-sdk-5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm
dotnet-sdk-5.0-source-built-artifacts-5.0.212-1.el8_5.x86_64.rpm
dotnet5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm
dotnet5.0-debugsource-5.0.212-1.el8_5.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-2020-8927
https://access.redhat.com/security/cve/CVE-2022-24464
https://access.redhat.com/security/cve/CVE-2022-24512
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2022 Red Hat, Inc.
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RedHat: RHSA-2022-0830:01 Important: .NET 5.0 security and bugfix update

An update for .NET 5.0 is now available for Red Hat Enterprise Linux 8

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 security vulnerabilities are now available. The updated versions are .NET SDK 5.0.212 and .NET Runtime 5.0.15.
Security Fix(es):
* dotnet: ASP.NET Denial of Service via FormPipeReader (CVE-2022-24464)
* dotnet: double parser stack buffer overrun (CVE-2022-24512)
* brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)
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.



Summary


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

References

https://access.redhat.com/security/cve/CVE-2020-8927 https://access.redhat.com/security/cve/CVE-2022-24464 https://access.redhat.com/security/cve/CVE-2022-24512 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: dotnet5.0-5.0.212-1.el8_5.src.rpm
x86_64: aspnetcore-runtime-5.0-5.0.15-1.el8_5.x86_64.rpm aspnetcore-targeting-pack-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-apphost-pack-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-apphost-pack-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-hostfxr-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-hostfxr-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-runtime-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-runtime-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-sdk-5.0-5.0.212-1.el8_5.x86_64.rpm dotnet-sdk-5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet-targeting-pack-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-templates-5.0-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debugsource-5.0.212-1.el8_5.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 8):
x86_64: dotnet-apphost-pack-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-hostfxr-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-runtime-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-sdk-5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet-sdk-5.0-source-built-artifacts-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debugsource-5.0.212-1.el8_5.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/


Severity
Advisory ID: RHSA-2022:0830-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0830
Issued Date: : 2022-03-10
CVE Names: CVE-2020-8927 CVE-2022-24464 CVE-2022-24512

Topic

An update for .NET 5.0 is now available for Red Hat Enterprise Linux 8.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.


Topic


 

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - x86_64

Red Hat Enterprise Linux AppStream (v. 8) - x86_64


Bugs Fixed

1879225 - CVE-2020-8927 brotli: buffer overflow when input chunk is larger than 2GiB

2061847 - CVE-2022-24464 dotnet: ASP.NET Denial of Service via FormPipeReader

2061854 - CVE-2022-24512 dotnet: double parser stack buffer overrun


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