Headline
Red Hat Security Advisory 2023-5145-01
Red Hat Security Advisory 2023-5145-01 - .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 7.0.111 and .NET Runtime 7.0.11. Issues addressed include a denial of service vulnerability.
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Red Hat Security Advisory
Synopsis: Moderate: .NET 7.0 security update
Advisory ID: RHSA-2023:5145-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:5145
Issue date: 2023-09-13
CVE Names: CVE-2023-36799
=====================================================================
- Summary:
An update for .NET 7.0 is now available for Red Hat Enterprise Linux 8.
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:
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux CRB (v. 8) - aarch64, ppc64le, s390x, 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 7.0.111 and .NET Runtime
7.0.11.
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.
- 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:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
dotnet7.0-7.0.111-1.el8_8.src.rpm
aarch64:
aspnetcore-runtime-7.0-7.0.11-1.el8_8.aarch64.rpm
aspnetcore-targeting-pack-7.0-7.0.11-1.el8_8.aarch64.rpm
dotnet-7.0.111-1.el8_8.aarch64.rpm
dotnet-apphost-pack-7.0-7.0.11-1.el8_8.aarch64.rpm
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-host-7.0.11-1.el8_8.aarch64.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-hostfxr-7.0-7.0.11-1.el8_8.aarch64.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-runtime-7.0-7.0.11-1.el8_8.aarch64.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-sdk-7.0-7.0.111-1.el8_8.aarch64.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.aarch64.rpm
dotnet-targeting-pack-7.0-7.0.11-1.el8_8.aarch64.rpm
dotnet-templates-7.0-7.0.111-1.el8_8.aarch64.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.aarch64.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.aarch64.rpm
netstandard-targeting-pack-2.1-7.0.111-1.el8_8.aarch64.rpm
ppc64le:
aspnetcore-runtime-7.0-7.0.11-1.el8_8.ppc64le.rpm
aspnetcore-targeting-pack-7.0-7.0.11-1.el8_8.ppc64le.rpm
dotnet-7.0.111-1.el8_8.ppc64le.rpm
dotnet-apphost-pack-7.0-7.0.11-1.el8_8.ppc64le.rpm
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-host-7.0.11-1.el8_8.ppc64le.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-hostfxr-7.0-7.0.11-1.el8_8.ppc64le.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-runtime-7.0-7.0.11-1.el8_8.ppc64le.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-sdk-7.0-7.0.111-1.el8_8.ppc64le.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.ppc64le.rpm
dotnet-targeting-pack-7.0-7.0.11-1.el8_8.ppc64le.rpm
dotnet-templates-7.0-7.0.111-1.el8_8.ppc64le.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.ppc64le.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.ppc64le.rpm
netstandard-targeting-pack-2.1-7.0.111-1.el8_8.ppc64le.rpm
s390x:
aspnetcore-runtime-7.0-7.0.11-1.el8_8.s390x.rpm
aspnetcore-targeting-pack-7.0-7.0.11-1.el8_8.s390x.rpm
dotnet-7.0.111-1.el8_8.s390x.rpm
dotnet-apphost-pack-7.0-7.0.11-1.el8_8.s390x.rpm
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-host-7.0.11-1.el8_8.s390x.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-hostfxr-7.0-7.0.11-1.el8_8.s390x.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-runtime-7.0-7.0.11-1.el8_8.s390x.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-sdk-7.0-7.0.111-1.el8_8.s390x.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.s390x.rpm
dotnet-targeting-pack-7.0-7.0.11-1.el8_8.s390x.rpm
dotnet-templates-7.0-7.0.111-1.el8_8.s390x.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.s390x.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.s390x.rpm
netstandard-targeting-pack-2.1-7.0.111-1.el8_8.s390x.rpm
x86_64:
aspnetcore-runtime-7.0-7.0.11-1.el8_8.x86_64.rpm
aspnetcore-targeting-pack-7.0-7.0.11-1.el8_8.x86_64.rpm
dotnet-7.0.111-1.el8_8.x86_64.rpm
dotnet-apphost-pack-7.0-7.0.11-1.el8_8.x86_64.rpm
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-host-7.0.11-1.el8_8.x86_64.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-hostfxr-7.0-7.0.11-1.el8_8.x86_64.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-runtime-7.0-7.0.11-1.el8_8.x86_64.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-sdk-7.0-7.0.111-1.el8_8.x86_64.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.x86_64.rpm
dotnet-targeting-pack-7.0-7.0.11-1.el8_8.x86_64.rpm
dotnet-templates-7.0-7.0.111-1.el8_8.x86_64.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.x86_64.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.x86_64.rpm
netstandard-targeting-pack-2.1-7.0.111-1.el8_8.x86_64.rpm
Red Hat Enterprise Linux CRB (v. 8):
aarch64:
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.aarch64.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.aarch64.rpm
dotnet-sdk-7.0-source-built-artifacts-7.0.111-1.el8_8.aarch64.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.aarch64.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.aarch64.rpm
ppc64le:
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.ppc64le.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.ppc64le.rpm
dotnet-sdk-7.0-source-built-artifacts-7.0.111-1.el8_8.ppc64le.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.ppc64le.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.ppc64le.rpm
s390x:
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.s390x.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.s390x.rpm
dotnet-sdk-7.0-source-built-artifacts-7.0.111-1.el8_8.s390x.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.s390x.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.s390x.rpm
x86_64:
dotnet-apphost-pack-7.0-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-host-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-hostfxr-7.0-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-runtime-7.0-debuginfo-7.0.11-1.el8_8.x86_64.rpm
dotnet-sdk-7.0-debuginfo-7.0.111-1.el8_8.x86_64.rpm
dotnet-sdk-7.0-source-built-artifacts-7.0.111-1.el8_8.x86_64.rpm
dotnet7.0-debuginfo-7.0.111-1.el8_8.x86_64.rpm
dotnet7.0-debugsource-7.0.111-1.el8_8.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...
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