Headline
Red Hat Security Advisory 2023-5142-01
Red Hat Security Advisory 2023-5142-01 - .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 6.0.122 and .NET Runtime 6.0.22. Issues addressed include a denial of service vulnerability.
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Red Hat Security Advisory
Synopsis: Moderate: .NET 6.0 security and bug fix update
Advisory ID: RHSA-2023:5142-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:5142
Issue date: 2023-09-13
CVE Names: CVE-2023-36799
=====================================================================
- Summary:
An update for .NET 6.0 is now available for 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.
- 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
- 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 6.0.122 and .NET Runtime
6.0.22.
Security Fix(es):
- dotnet: Denial of Service with Client Certificates using .NET Kestrel
(CVE-2023-36799)
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):
- Update .NET 6.0 to SDK 6.0.122 and Runtime 6.0.22 (BZ#2236895)
- 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
- Bugs fixed (https://bugzilla.redhat.com/):
2237317 - CVE-2023-36799 dotnet: Denial of Service with Client Certificates using .NET Kestrel
- Package List:
.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
rh-dotnet60-dotnet-6.0.122-1.el7_9.src.rpm
x86_64:
rh-dotnet60-aspnetcore-runtime-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-apphost-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-debuginfo-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-host-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-hostfxr-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-runtime-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-source-built-artifacts-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-targeting-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-templates-6.0-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-netstandard-targeting-pack-2.1-6.0.122-1.el7_9.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source:
rh-dotnet60-dotnet-6.0.122-1.el7_9.src.rpm
x86_64:
rh-dotnet60-aspnetcore-runtime-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-apphost-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-debuginfo-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-host-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-hostfxr-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-runtime-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-source-built-artifacts-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-targeting-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-templates-6.0-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-netstandard-targeting-pack-2.1-6.0.122-1.el7_9.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Workstation (v. 7):
Source:
rh-dotnet60-dotnet-6.0.122-1.el7_9.src.rpm
x86_64:
rh-dotnet60-aspnetcore-runtime-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-apphost-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-debuginfo-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-host-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-hostfxr-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-runtime-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-sdk-6.0-source-built-artifacts-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-targeting-pack-6.0-6.0.22-1.el7_9.x86_64.rpm
rh-dotnet60-dotnet-templates-6.0-6.0.122-1.el7_9.x86_64.rpm
rh-dotnet60-netstandard-targeting-pack-2.1-6.0.122-1.el7_9.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/
- References:
https://access.redhat.com/security/cve/CVE-2023-36799
https://access.redhat.com/security/updates/classification/#moderate
- Contact:
The Red Hat security contact is [email protected]. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2023 Red Hat, Inc.
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# Microsoft Security Advisory CVE-2023-36799: .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in .NET where reading a maliciously crafted X.509 certificate may result in Denial of Service. This issue only affects Linux systems. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/275 ### <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-software"></a>Affected software * Any .NET 7.0 application running on .NET 7.0.10 or earlier. * Any .NET 6.0 application running on .NET 6.0.21 or earlier. If your application uses the followin...
.NET Core and Visual Studio Denial of Service Vulnerability