Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.3075
.NET Core 3.1 security and bugfix update for Red Hat Enterprise Linux
9 September 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: .NET Core 3.1
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Provide Misleading Information -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-1045
Reference: ASB-2020.0153
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:3697
https://access.redhat.com/errata/RHSA-2020:3699
Comment: This bulletin contains two (2) Red Hat security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: .NET Core 3.1 security and bugfix update for Red Hat Enterprise Linux
Advisory ID: RHSA-2020:3697-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3697
Issue date: 2020-09-08
CVE Names: CVE-2020-1045
=====================================================================
1. Summary:
An update for rh-dotnet31-dotnet is now available for .NET Core on Red Hat
Enterprise Linux.
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:
.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
.NET Core on Red Hat Enterprise Linux Server (v. 7) - x86_64
.NET Core on Red Hat Enterprise Linux Workstation (v. 7) - 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 3.1.108 and .NET Core
Runtime 3.1.8.
Security Fix(es):
* .NET Core: ASP.NET cookie prefix spoofing vulnerability (CVE-2020-1045)
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/):
1873451 - CVE-2020-1045 dotnet: ASP.NET cookie prefix spoofing vulnerability
6. Package List:
.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
rh-dotnet31-dotnet-3.1.108-1.el7.src.rpm
x86_64:
rh-dotnet31-aspnetcore-runtime-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-apphost-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-debuginfo-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-host-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-hostfxr-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-runtime-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-sdk-3.1-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-targeting-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-templates-3.1-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-netstandard-targeting-pack-2.1-3.1.108-1.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source:
rh-dotnet31-dotnet-3.1.108-1.el7.src.rpm
x86_64:
rh-dotnet31-aspnetcore-runtime-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-apphost-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-debuginfo-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-host-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-hostfxr-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-runtime-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-sdk-3.1-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-targeting-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-templates-3.1-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-netstandard-targeting-pack-2.1-3.1.108-1.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Workstation (v. 7):
Source:
rh-dotnet31-dotnet-3.1.108-1.el7.src.rpm
x86_64:
rh-dotnet31-aspnetcore-runtime-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-apphost-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-debuginfo-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-host-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-hostfxr-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-runtime-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-sdk-3.1-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-dotnet-targeting-pack-3.1-3.1.8-1.el7.x86_64.rpm
rh-dotnet31-dotnet-templates-3.1-3.1.108-1.el7.x86_64.rpm
rh-dotnet31-netstandard-targeting-pack-2.1-3.1.108-1.el7.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-2020-1045
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 2020 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=Nco9
- -----END PGP SIGNATURE-----
- ----------------------------------------------------------------------------------------------------------------------------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: .NET Core 3.1 security and bugfix update
Advisory ID: RHSA-2020:3699-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3699
Issue date: 2020-09-08
CVE Names: CVE-2020-1045
=====================================================================
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 security vulnerabilities are now
available. The updated versions are .NET Core SDK 3.1.108 and .NET Core
Runtime 3.1.8.
Security Fixes:
* .NET Core: ASP.NET cookie prefix spoofing vulnerability (CVE-2020-1045)
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/):
1873451 - CVE-2020-1045 dotnet: ASP.NET cookie prefix spoofing vulnerability
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
dotnet3.1-3.1.108-2.el8_2.src.rpm
x86_64:
aspnetcore-runtime-3.1-3.1.8-2.el8_2.x86_64.rpm
aspnetcore-targeting-pack-3.1-3.1.8-2.el8_2.x86_64.rpm
dotnet-3.1.108-2.el8_2.x86_64.rpm
dotnet-apphost-pack-3.1-3.1.8-2.el8_2.x86_64.rpm
dotnet-apphost-pack-3.1-debuginfo-3.1.8-2.el8_2.x86_64.rpm
dotnet-host-3.1.8-2.el8_2.x86_64.rpm
dotnet-host-debuginfo-3.1.8-2.el8_2.x86_64.rpm
dotnet-hostfxr-3.1-3.1.8-2.el8_2.x86_64.rpm
dotnet-hostfxr-3.1-debuginfo-3.1.8-2.el8_2.x86_64.rpm
dotnet-runtime-3.1-3.1.8-2.el8_2.x86_64.rpm
dotnet-runtime-3.1-debuginfo-3.1.8-2.el8_2.x86_64.rpm
dotnet-sdk-3.1-3.1.108-2.el8_2.x86_64.rpm
dotnet-sdk-3.1-debuginfo-3.1.108-2.el8_2.x86_64.rpm
dotnet-targeting-pack-3.1-3.1.8-2.el8_2.x86_64.rpm
dotnet-templates-3.1-3.1.108-2.el8_2.x86_64.rpm
dotnet3.1-debuginfo-3.1.108-2.el8_2.x86_64.rpm
dotnet3.1-debugsource-3.1.108-2.el8_2.x86_64.rpm
netstandard-targeting-pack-2.1-3.1.108-2.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-2020-1045
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 2020 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=U3Qt
- -----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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=35mm
-----END PGP SIGNATURE-----