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

Synopsis:          Moderate: .NET Core on Red Hat Enterprise Linux security and
 bug fix update
Advisory ID:       RHSA-2019:1236-01
Product:           .NET Core on Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:1236
Issue date:        2019-05-15
CVE Names:         CVE-2019-0820 CVE-2019-0980 CVE-2019-0981 
=====================================================================

1. Summary:

Updates for rh-dotnetcore10-dotnetcore, rh-dotnetcore11-dotnetcore,
rh-dotnet21-dotnet, rh-dotnet22-dotnet and rh-dotnet22-curl are now
available for .NET Core on Red Hat Enterprise Linux 7.

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.

New versions of .NET Core that address security vulnerabilities are now
available. The updated versions are .NET Core 1.0.16, 1.1.13, 2.1.11, and
2.2.5.

Security Fix(es):

* dotNET: timeouts for regular expressions are not enforced (CVE-2019-0820)

* dotNET: infinite loop in URI.TryCreate leading to ASP.Net Core Denial of
Service (CVE-2019-0980)

* dotNET: crash in IPAddress.TryCreate leading to ASP.Net Core Denial of
Service (CVE-2019-0981)

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.

Bug Fix(es):

* Re-enable bash completion in rh-dotnet22-dotnet (BZ#1654863)

* Error rebuilding rh-dotnet22-curl in CentOS (BZ#1678932)

* Broken apphost caused by unset DOTNET_ROOT (BZ#1703479)

* Make bash completion compatible with rh-dotnet22 packages (BZ#1705259)

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/):

1654863 - Re-enable bash completion in rh-dotnet22-dotnet
1678932 - Error rebuilding rh-dotnet22-curl in CentOS
1703479 - Broken apphost caused by unset DOTNET_ROOT
1703508 - Update to .NET Core 1.1.13
1704454 - Update to .NET Core 1.0.16
1704934 - Update to .NET Core Runtime 2.2.5 and SDK 2.2.107
1705147 - Update to .NET Core Runtime 2.1.11 and SDK 2.1.507
1705259 - Make bash completion compatible with rh-dotnet22 packages
1705502 - CVE-2019-0980 dotNET: infinite loop in URI.TryCreate leading to
 ASP.Net Core Denial of Service
1705504 - CVE-2019-0981 dotNET: crash in IPAddress.TryCreate leading to ASP.Net
 Core Denial of Service
1705506 - CVE-2019-0820 dotNET: timeouts for regular expressions are not
 enforced

6. Package List:

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

Source:
rh-dotnetcore10-dotnetcore-1.0.16-1.el7.src.rpm

x86_64:
rh-dotnetcore10-dotnetcore-1.0.16-1.el7.x86_64.rpm
rh-dotnetcore10-dotnetcore-debuginfo-1.0.16-1.el7.x86_64.rpm

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

Source:
rh-dotnetcore11-dotnetcore-1.1.13-1.el7.src.rpm

x86_64:
rh-dotnetcore11-dotnetcore-1.1.13-1.el7.x86_64.rpm
rh-dotnetcore11-dotnetcore-debuginfo-1.1.13-1.el7.x86_64.rpm

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

Source:
rh-dotnet21-2.1-10.el7.src.rpm
rh-dotnet21-dotnet-2.1.507-2.el7.src.rpm

x86_64:
rh-dotnet21-2.1-10.el7.x86_64.rpm
rh-dotnet21-dotnet-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-debuginfo-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-host-2.1.11-2.el7.x86_64.rpm
rh-dotnet21-dotnet-runtime-2.1-2.1.11-2.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1.5xx-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-runtime-2.1-10.el7.x86_64.rpm

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

Source:
rh-dotnet22-2.2-7.el7.src.rpm
rh-dotnet22-curl-7.61.1-2.el7.src.rpm
rh-dotnet22-dotnet-2.2.107-2.el7.src.rpm

x86_64:
rh-dotnet22-2.2-7.el7.x86_64.rpm
rh-dotnet22-curl-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-curl-debuginfo-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-dotnet-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-debuginfo-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-host-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-host-fxr-2.2-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-runtime-2.2-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2.1xx-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-libcurl-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-libcurl-devel-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-runtime-2.2-7.el7.x86_64.rpm

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

Source:
rh-dotnetcore10-dotnetcore-1.0.16-1.el7.src.rpm

x86_64:
rh-dotnetcore10-dotnetcore-1.0.16-1.el7.x86_64.rpm
rh-dotnetcore10-dotnetcore-debuginfo-1.0.16-1.el7.x86_64.rpm

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

Source:
rh-dotnetcore11-dotnetcore-1.1.13-1.el7.src.rpm

x86_64:
rh-dotnetcore11-dotnetcore-1.1.13-1.el7.x86_64.rpm
rh-dotnetcore11-dotnetcore-debuginfo-1.1.13-1.el7.x86_64.rpm

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

Source:
rh-dotnet21-2.1-10.el7.src.rpm
rh-dotnet21-dotnet-2.1.507-2.el7.src.rpm

x86_64:
rh-dotnet21-2.1-10.el7.x86_64.rpm
rh-dotnet21-dotnet-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-debuginfo-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-host-2.1.11-2.el7.x86_64.rpm
rh-dotnet21-dotnet-runtime-2.1-2.1.11-2.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1.5xx-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-runtime-2.1-10.el7.x86_64.rpm

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

Source:
rh-dotnet22-2.2-7.el7.src.rpm
rh-dotnet22-curl-7.61.1-2.el7.src.rpm
rh-dotnet22-dotnet-2.2.107-2.el7.src.rpm

x86_64:
rh-dotnet22-2.2-7.el7.x86_64.rpm
rh-dotnet22-curl-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-curl-debuginfo-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-dotnet-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-debuginfo-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-host-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-host-fxr-2.2-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-runtime-2.2-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2.1xx-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-libcurl-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-libcurl-devel-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-runtime-2.2-7.el7.x86_64.rpm

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

Source:
rh-dotnetcore10-dotnetcore-1.0.16-1.el7.src.rpm

x86_64:
rh-dotnetcore10-dotnetcore-1.0.16-1.el7.x86_64.rpm
rh-dotnetcore10-dotnetcore-debuginfo-1.0.16-1.el7.x86_64.rpm

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

Source:
rh-dotnetcore11-dotnetcore-1.1.13-1.el7.src.rpm

x86_64:
rh-dotnetcore11-dotnetcore-1.1.13-1.el7.x86_64.rpm
rh-dotnetcore11-dotnetcore-debuginfo-1.1.13-1.el7.x86_64.rpm

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

Source:
rh-dotnet21-2.1-10.el7.src.rpm
rh-dotnet21-dotnet-2.1.507-2.el7.src.rpm

x86_64:
rh-dotnet21-2.1-10.el7.x86_64.rpm
rh-dotnet21-dotnet-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-debuginfo-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-host-2.1.11-2.el7.x86_64.rpm
rh-dotnet21-dotnet-runtime-2.1-2.1.11-2.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-dotnet-sdk-2.1.5xx-2.1.507-2.el7.x86_64.rpm
rh-dotnet21-runtime-2.1-10.el7.x86_64.rpm

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

Source:
rh-dotnet22-2.2-7.el7.src.rpm
rh-dotnet22-curl-7.61.1-2.el7.src.rpm
rh-dotnet22-dotnet-2.2.107-2.el7.src.rpm

x86_64:
rh-dotnet22-2.2-7.el7.x86_64.rpm
rh-dotnet22-curl-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-curl-debuginfo-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-dotnet-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-debuginfo-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-host-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-host-fxr-2.2-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-runtime-2.2-2.2.5-2.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2.1xx-2.2.107-2.el7.x86_64.rpm
rh-dotnet22-libcurl-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-libcurl-devel-7.61.1-2.el7.x86_64.rpm
rh-dotnet22-runtime-2.2-7.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-2019-0820
https://access.redhat.com/security/cve/CVE-2019-0980
https://access.redhat.com/security/cve/CVE-2019-0981
https://access.redhat.com/security/updates/classification/#moderate
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0980
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0981

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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