RedHat: RHSA-2019-0040:01 Moderate: .NET Core on Red Hat Enterprise Linux
Summary
.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 2.1.5 and 2.2.1.
Security Fix(es):
* .NET Core: NCL - SocketsHttpHandler mishandling 1xx response as a final
response leads to info disclosure (CVE-2019-0545)
* .NET Core: ANCM WebSocket DOS (CVE-2019-0548)
* .NET Core: Kestrel - WebSocket DoS via CancellationToken (CoreFX and
ASP.NET) (CVE-2019-0564)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
For more information, please refer to the upstream docs in the References
section.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2019-0545 https://access.redhat.com/security/cve/CVE-2019-0548 https://access.redhat.com/security/cve/CVE-2019-0564 https://access.redhat.com/security/updates/classification/#moderate https://msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0545 https://msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0548 https://msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0564
Package List
.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
rh-dotnet21-2.1-6.el7.src.rpm
rh-dotnet21-dotnet-2.1.503-1.el7.src.rpm
x86_64:
rh-dotnet21-dotnet-sdk-2.1-2.1.503-1.el7.x86_64.rpm
rh-dotnet21-runtime-2.1-6.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
rh-dotnet22-2.2-2.el7.src.rpm
rh-dotnet22-dotnet-2.2.102-1.el7.src.rpm
x86_64:
rh-dotnet22-2.2-2.el7.x86_64.rpm
rh-dotnet22-dotnet-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-debuginfo-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-host-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-host-fxr-2.2-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-runtime-2.2-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2.1xx-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-runtime-2.2-2.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source:
rh-dotnet21-2.1-6.el7.src.rpm
rh-dotnet21-dotnet-2.1.503-1.el7.src.rpm
x86_64:
rh-dotnet21-dotnet-sdk-2.1-2.1.503-1.el7.x86_64.rpm
rh-dotnet21-runtime-2.1-6.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source:
rh-dotnet22-2.2-2.el7.src.rpm
rh-dotnet22-dotnet-2.2.102-1.el7.src.rpm
x86_64:
rh-dotnet22-2.2-2.el7.x86_64.rpm
rh-dotnet22-dotnet-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-debuginfo-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-host-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-host-fxr-2.2-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-runtime-2.2-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2.1xx-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-runtime-2.2-2.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Workstation (v. 7):
Source:
rh-dotnet21-2.1-6.el7.src.rpm
rh-dotnet21-dotnet-2.1.503-1.el7.src.rpm
x86_64:
rh-dotnet21-dotnet-sdk-2.1-2.1.503-1.el7.x86_64.rpm
rh-dotnet21-runtime-2.1-6.el7.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Workstation (v. 7):
Source:
rh-dotnet22-2.2-2.el7.src.rpm
rh-dotnet22-dotnet-2.2.102-1.el7.src.rpm
x86_64:
rh-dotnet22-2.2-2.el7.x86_64.rpm
rh-dotnet22-dotnet-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-debuginfo-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-host-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-host-fxr-2.2-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-runtime-2.2-2.2.1-1.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-dotnet-sdk-2.2.1xx-2.2.102-1.el7.x86_64.rpm
rh-dotnet22-runtime-2.2-2.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/
Topic
Updates for rh-dotnet21-dotnet and rh-dotnet22-dotnet are now available for.NET Core on Red Hat Enterprise Linux.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
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
Bugs Fixed
1660632 - CVE-2019-0545 .NET Core: NCL - SocketsHttpHandler mishandling 1xx response as a final response leads to info disclosure
1660634 - CVE-2019-0564 .NET Core: Kestrel - WebSocket DoS via CancellationToken (CoreFX and ASP.NET)
1660636 - CVE-2019-0548 .NET Core: ANCM WebSocket DOS