Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.2413
Critical: .NET Core 3.1 security and bugfix update
16 July 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: .NET Core 3.1
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 8
Red Hat Enterprise Linux WS/Desktop 8
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-1147
Reference: ASB-2020.0123
ASB-2020.0118
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:2954
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Critical: .NET Core 3.1 security and bugfix update
Advisory ID: RHSA-2020:2954-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2954
Issue date: 2020-07-15
CVE Names: CVE-2020-1147
=====================================================================
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 Critical. 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 3.1.106 and .NET Core
Runtime 3.1.6.
* .NET Core: XML source markup processing remote code execution
(CVE-2020-1147)
Default inclusions for applications built with .NET Core have been updated
to reference the newest versions and their security fixes.
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/):
1856929 - CVE-2020-1147 dotnet: XML source markup processing remote code execution
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
dotnet3.1-3.1.106-1.el8_2.src.rpm
x86_64:
aspnetcore-runtime-3.1-3.1.6-1.el8_2.x86_64.rpm
aspnetcore-targeting-pack-3.1-3.1.6-1.el8_2.x86_64.rpm
dotnet-3.1.106-1.el8_2.x86_64.rpm
dotnet-apphost-pack-3.1-3.1.6-1.el8_2.x86_64.rpm
dotnet-apphost-pack-3.1-debuginfo-3.1.6-1.el8_2.x86_64.rpm
dotnet-host-3.1.6-1.el8_2.x86_64.rpm
dotnet-host-debuginfo-3.1.6-1.el8_2.x86_64.rpm
dotnet-hostfxr-3.1-3.1.6-1.el8_2.x86_64.rpm
dotnet-hostfxr-3.1-debuginfo-3.1.6-1.el8_2.x86_64.rpm
dotnet-runtime-3.1-3.1.6-1.el8_2.x86_64.rpm
dotnet-runtime-3.1-debuginfo-3.1.6-1.el8_2.x86_64.rpm
dotnet-sdk-3.1-3.1.106-1.el8_2.x86_64.rpm
dotnet-sdk-3.1-debuginfo-3.1.106-1.el8_2.x86_64.rpm
dotnet-targeting-pack-3.1-3.1.6-1.el8_2.x86_64.rpm
dotnet-templates-3.1-3.1.106-1.el8_2.x86_64.rpm
dotnet3.1-debuginfo-3.1.106-1.el8_2.x86_64.rpm
dotnet3.1-debugsource-3.1.106-1.el8_2.x86_64.rpm
netstandard-targeting-pack-2.1-3.1.106-1.el8_2.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-2020-1147
https://access.redhat.com/security/updates/classification/#critical
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=/APh
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=3mAs
-----END PGP SIGNATURE-----