-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Important: dotnet5.0 security and bugfix update
Advisory ID:       RHSA-2021:0094-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0094
Issue date:        2021-01-13
CVE Names:         CVE-2021-1723 
=====================================================================

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 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 a security vulnerability are now
available. The updated versions are .NET SDK 5.0.102 and .NET Runtime
5.0.2.

Security Fix(es):

* dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock
when using HTTP2 (CVE-2021-1723)

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/):

1914258 - CVE-2021-1723 dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dotnet5.0-5.0.102-2.el8_3.src.rpm

x86_64:
aspnetcore-runtime-5.0-5.0.2-2.el8_3.x86_64.rpm
aspnetcore-targeting-pack-5.0-5.0.2-2.el8_3.x86_64.rpm
dotnet-5.0.102-2.el8_3.x86_64.rpm
dotnet-apphost-pack-5.0-5.0.2-2.el8_3.x86_64.rpm
dotnet-apphost-pack-5.0-debuginfo-5.0.2-2.el8_3.x86_64.rpm
dotnet-host-5.0.2-2.el8_3.x86_64.rpm
dotnet-host-debuginfo-5.0.2-2.el8_3.x86_64.rpm
dotnet-hostfxr-5.0-5.0.2-2.el8_3.x86_64.rpm
dotnet-hostfxr-5.0-debuginfo-5.0.2-2.el8_3.x86_64.rpm
dotnet-runtime-5.0-5.0.2-2.el8_3.x86_64.rpm
dotnet-runtime-5.0-debuginfo-5.0.2-2.el8_3.x86_64.rpm
dotnet-sdk-5.0-5.0.102-2.el8_3.x86_64.rpm
dotnet-sdk-5.0-debuginfo-5.0.102-2.el8_3.x86_64.rpm
dotnet-targeting-pack-5.0-5.0.2-2.el8_3.x86_64.rpm
dotnet-templates-5.0-5.0.102-2.el8_3.x86_64.rpm
dotnet5.0-debuginfo-5.0.102-2.el8_3.x86_64.rpm
dotnet5.0-debugsource-5.0.102-2.el8_3.x86_64.rpm
netstandard-targeting-pack-2.1-5.0.102-2.el8_3.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-2021-1723
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 2021 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=IcSo
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce