[RHSA-2021:0788-01] Important: dotnet security and bugfix update

Security announcements for all Red Hat products and services. rhsa-announce at redhat.com
Tue Mar 9 20:11:48 UTC 2021


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

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

Synopsis:          Important: dotnet security and bugfix update
Advisory ID:       RHSA-2021:0788-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0788
Issue date:        2021-03-09
CVE Names:         CVE-2021-26701 
=====================================================================

1. Summary:

An update for .NET Core 2.1 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 2.1.522 and .NET Core
Runtime 2.1.26.

Security Fix(es):

* dotnet: System.Text.Encodings.Web Remote Code Execution (CVE-2021-26701)

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/):

1933740 - CVE-2021-26701 dotnet: System.Text.Encodings.Web Remote Code Execution

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dotnet-2.1.522-1.el8_3.src.rpm

x86_64:
dotnet-debuginfo-2.1.522-1.el8_3.x86_64.rpm
dotnet-debugsource-2.1.522-1.el8_3.x86_64.rpm
dotnet-host-fxr-2.1-2.1.26-1.el8_3.x86_64.rpm
dotnet-host-fxr-2.1-debuginfo-2.1.26-1.el8_3.x86_64.rpm
dotnet-runtime-2.1-2.1.26-1.el8_3.x86_64.rpm
dotnet-runtime-2.1-debuginfo-2.1.26-1.el8_3.x86_64.rpm
dotnet-sdk-2.1-2.1.522-1.el8_3.x86_64.rpm
dotnet-sdk-2.1.5xx-2.1.522-1.el8_3.x86_64.rpm
dotnet-sdk-2.1.5xx-debuginfo-2.1.522-1.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-2021-26701
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert at 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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=RL9G
-----END PGP SIGNATURE-----




More information about the RHSA-announce mailing list