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Red Hat Security Advisory

Synopsis: Moderate: .NET Core on Red Hat Enterprise Linux security update
Advisory ID: RHSA-2018:3676-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3676
Issue date: 2018-11-27
CVE Names: CVE-2018-8416
=====================================================================

1. Summary:

An update for rh-dotnet21-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 Moderate. 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.

A new version of .NET Core that addresses a security vulnerability is now
available. The updated version is .NET Core 2.1.5.

Security Fix(es):

* .NET Core: Arbitrary file and directory creation (CVE-2018-8416)

For more information, please refer to the upstream docs 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/):

1649693 – CVE-2018-8416 .NET Core: Arbitrary file and directory creation

6. Package List:

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
rh-dotnet21-dotnet-2.1.500-5.el7.src.rpm

x86_64:
rh-dotnet21-dotnet-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-debuginfo-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-host-2.1.6-5.el7.x86_64.rpm
rh-dotnet21-dotnet-runtime-2.1-2.1.6-5.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1.5xx-2.1.500-5.el7.x86_64.rpm

.NET Core on Red Hat Enterprise Linux Server (v. 7):

Source:
rh-dotnet21-dotnet-2.1.500-5.el7.src.rpm

x86_64:
rh-dotnet21-dotnet-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-debuginfo-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-host-2.1.6-5.el7.x86_64.rpm
rh-dotnet21-dotnet-runtime-2.1-2.1.6-5.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1.5xx-2.1.500-5.el7.x86_64.rpm

.NET Core on Red Hat Enterprise Linux Workstation (v. 7):

Source:
rh-dotnet21-dotnet-2.1.500-5.el7.src.rpm

x86_64:
rh-dotnet21-dotnet-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-debuginfo-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-host-2.1.6-5.el7.x86_64.rpm
rh-dotnet21-dotnet-runtime-2.1-2.1.6-5.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1-2.1.500-5.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1.5xx-2.1.500-5.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-2018-8416
https://access.redhat.com/security/updates/classification/#moderate
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8416

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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