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Sicherheit: Ausführen von Code mit höheren Privilegien in dotnet5.0
Aktuelle Meldungen Distributionen
Name: Ausführen von Code mit höheren Privilegien in dotnet5.0
ID: RHSA-2021:2036-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Mi, 19. Mai 2021, 23:30
Referenzen: https://access.redhat.com/security/cve/CVE-2021-31204
Applikationen: dotnet5.0

Originalnachricht

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

Synopsis: Important: dotnet5.0 security and bugfix update
Advisory ID: RHSA-2021:2036-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2036
Issue date: 2021-05-19
CVE Names: CVE-2021-31204
=====================================================================

1. Summary:

An update for .NET 5.0 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 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 that address a security vulnerability are now
available. The updated versions are .NET SDK 5.0.203 and .NET Runtime
5.0.6.

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:
dotnet5.0-5.0.203-1.el8_4.src.rpm

x86_64:
aspnetcore-runtime-5.0-5.0.6-1.el8_4.x86_64.rpm
aspnetcore-targeting-pack-5.0-5.0.6-1.el8_4.x86_64.rpm
dotnet-5.0.203-1.el8_4.x86_64.rpm
dotnet-apphost-pack-5.0-5.0.6-1.el8_4.x86_64.rpm
dotnet-apphost-pack-5.0-debuginfo-5.0.6-1.el8_4.x86_64.rpm
dotnet-host-5.0.6-1.el8_4.x86_64.rpm
dotnet-host-debuginfo-5.0.6-1.el8_4.x86_64.rpm
dotnet-hostfxr-5.0-5.0.6-1.el8_4.x86_64.rpm
dotnet-hostfxr-5.0-debuginfo-5.0.6-1.el8_4.x86_64.rpm
dotnet-runtime-5.0-5.0.6-1.el8_4.x86_64.rpm
dotnet-runtime-5.0-debuginfo-5.0.6-1.el8_4.x86_64.rpm
dotnet-sdk-5.0-5.0.203-1.el8_4.x86_64.rpm
dotnet-sdk-5.0-debuginfo-5.0.203-1.el8_4.x86_64.rpm
dotnet-targeting-pack-5.0-5.0.6-1.el8_4.x86_64.rpm
dotnet-templates-5.0-5.0.203-1.el8_4.x86_64.rpm
dotnet5.0-debuginfo-5.0.203-1.el8_4.x86_64.rpm
dotnet5.0-debugsource-5.0.203-1.el8_4.x86_64.rpm
netstandard-targeting-pack-2.1-5.0.203-1.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.
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