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

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

Synopsis:          Important: dotnet3.1 security and bugfix update
Advisory ID:       RHSA-2021:0471-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0471
Issue date:        2021-02-10
CVE Names:         CVE-2021-1721 
=====================================================================

1. Summary:

An update for .NET Core 3.1 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 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 3.1.112 and .NET Core
Runtime 3.1.12.

Security Fix(es):

* dotnet: certificate chain building recursion Denial of Service
(CVE-2021-1721)

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/):

1926918 - CVE-2021-1721 dotnet: certificate chain building recursion Denial of
 Service

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dotnet3.1-3.1.112-1.el8_3.src.rpm

x86_64:
aspnetcore-runtime-3.1-3.1.12-1.el8_3.x86_64.rpm
aspnetcore-targeting-pack-3.1-3.1.12-1.el8_3.x86_64.rpm
dotnet-apphost-pack-3.1-3.1.12-1.el8_3.x86_64.rpm
dotnet-apphost-pack-3.1-debuginfo-3.1.12-1.el8_3.x86_64.rpm
dotnet-hostfxr-3.1-3.1.12-1.el8_3.x86_64.rpm
dotnet-hostfxr-3.1-debuginfo-3.1.12-1.el8_3.x86_64.rpm
dotnet-runtime-3.1-3.1.12-1.el8_3.x86_64.rpm
dotnet-runtime-3.1-debuginfo-3.1.12-1.el8_3.x86_64.rpm
dotnet-sdk-3.1-3.1.112-1.el8_3.x86_64.rpm
dotnet-sdk-3.1-debuginfo-3.1.112-1.el8_3.x86_64.rpm
dotnet-targeting-pack-3.1-3.1.12-1.el8_3.x86_64.rpm
dotnet-templates-3.1-3.1.112-1.el8_3.x86_64.rpm
dotnet3.1-debuginfo-3.1.112-1.el8_3.x86_64.rpm
dotnet3.1-debugsource-3.1.112-1.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-2021-1721
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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=Vf1v
-----END PGP SIGNATURE-----

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