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

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

Synopsis:          Important: dotnet3.1 security and bugfix update
Advisory ID:       RHSA-2021:2037-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2037
Issue date:        2021-05-19
CVE Names:         CVE-2021-31204
====================================================================
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 3.1.115 and .NET Core
Runtime 3.1.15.

Security Fix(es):

* dotnet: .NET Core single-file application privilege escalation
(CVE-2021-31204)

In order for the update to be complete, self-contained applications
deployed using previous versions need to be recompiled and redeployed.

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/):

1956815 - CVE-2021-31204 dotnet: .NET Core single-file application privilege escalation

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dotnet3.1-3.1.115-1.el8_4.src.rpm

x86_64:
aspnetcore-runtime-3.1-3.1.15-1.el8_4.x86_64.rpm
aspnetcore-targeting-pack-3.1-3.1.15-1.el8_4.x86_64.rpm
dotnet-apphost-pack-3.1-3.1.15-1.el8_4.x86_64.rpm
dotnet-apphost-pack-3.1-debuginfo-3.1.15-1.el8_4.x86_64.rpm
dotnet-hostfxr-3.1-3.1.15-1.el8_4.x86_64.rpm
dotnet-hostfxr-3.1-debuginfo-3.1.15-1.el8_4.x86_64.rpm
dotnet-runtime-3.1-3.1.15-1.el8_4.x86_64.rpm
dotnet-runtime-3.1-debuginfo-3.1.15-1.el8_4.x86_64.rpm
dotnet-sdk-3.1-3.1.115-1.el8_4.x86_64.rpm
dotnet-sdk-3.1-debuginfo-3.1.115-1.el8_4.x86_64.rpm
dotnet-targeting-pack-3.1-3.1.15-1.el8_4.x86_64.rpm
dotnet-templates-3.1-3.1.115-1.el8_4.x86_64.rpm
dotnet3.1-debuginfo-3.1.115-1.el8_4.x86_64.rpm
dotnet3.1-debugsource-3.1.115-1.el8_4.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-2021-31204
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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YzuO
-----END PGP SIGNATURE-----

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