var-202102-0778
Vulnerability from variot

.NET Core and Visual Studio Denial of Service Vulnerability. plural Microsoft The product interferes with service operation (DoS) A vulnerability exists.Denial of service (DoS) It may be put into a state. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

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

Synopsis: Important: .NET 5.0 on Red Hat Enterprise Linux security and bugfix update Advisory ID: RHSA-2021:0473-01 Product: .NET Core on Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0473 Issue date: 2021-02-10 CVE Names: CVE-2021-1721 ==================================================================== 1. Summary:

An update for rh-dotnet50-dotnet is now available for .NET on Red Hat Enterprise Linux.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

  1. 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

  1. 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 5.0.103 and .NET Runtime 5.0.3.

Security Fix(es):

  • dotnet: certificate chain building recursion Denial of Service (CVE-2021-1721)

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.

  1. 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

  1. Bugs fixed (https://bugzilla.redhat.com/):

1926918 - CVE-2021-1721 dotnet: certificate chain building recursion Denial of Service

  1. Package List:

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

Source: rh-dotnet50-dotnet-5.0.103-1.el7_9.src.rpm

x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-hostfxr-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-templates-5.0-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-netstandard-targeting-pack-2.1-5.0.103-1.el7_9.x86_64.rpm

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

Source: rh-dotnet50-dotnet-5.0.103-1.el7_9.src.rpm

x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-hostfxr-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-templates-5.0-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-netstandard-targeting-pack-2.1-5.0.103-1.el7_9.x86_64.rpm

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

Source: rh-dotnet50-dotnet-5.0.103-1.el7_9.src.rpm

x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-hostfxr-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-templates-5.0-5.0.103-1.el7_9.x86_64.rpm rh-dotnet50-netstandard-targeting-pack-2.1-5.0.103-1.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/

  1. References:

https://access.redhat.com/security/cve/CVE-2021-1721 https://access.redhat.com/security/updates/classification/#important

  1. Contact:

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

Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1

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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

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    "data": ".NET Core and Visual Studio Denial of Service Vulnerability. plural Microsoft The product interferes with service operation (DoS) A vulnerability exists.Denial of service (DoS) It may be put into a state. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n====================================================================                   \nRed Hat Security Advisory\n\nSynopsis:          Important: .NET 5.0 on Red Hat Enterprise Linux security and bugfix update\nAdvisory ID:       RHSA-2021:0473-01\nProduct:           .NET Core on Red Hat Enterprise Linux\nAdvisory URL:      https://access.redhat.com/errata/RHSA-2021:0473\nIssue date:        2021-02-10\nCVE Names:         CVE-2021-1721\n====================================================================\n1. Summary:\n\nAn update for rh-dotnet50-dotnet is now available for .NET on Red Hat\nEnterprise Linux. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\n.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64\n.NET Core on Red Hat Enterprise Linux Server (v. 7) - x86_64\n.NET Core on Red Hat Enterprise Linux Workstation (v. 7) - x86_64\n\n3. Description:\n\n.NET is a managed-software framework. It implements a subset of the .NET\nframework APIs and several new APIs, and it includes a CLR implementation. \n\nNew versions of .NET that address a security vulnerability are now\navailable. The updated versions are .NET SDK 5.0.103 and .NET Runtime\n5.0.3. \n\nSecurity Fix(es):\n\n* dotnet: certificate chain building recursion Denial of Service\n(CVE-2021-1721)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1926918 - CVE-2021-1721 dotnet: certificate chain building recursion Denial of Service\n\n6. Package List:\n\n.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\nrh-dotnet50-dotnet-5.0.103-1.el7_9.src.rpm\n\nx86_64:\nrh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-apphost-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-debuginfo-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-host-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-hostfxr-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-sdk-5.0-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-templates-5.0-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-netstandard-targeting-pack-2.1-5.0.103-1.el7_9.x86_64.rpm\n\n.NET Core on Red Hat Enterprise Linux Server (v. 7):\n\nSource:\nrh-dotnet50-dotnet-5.0.103-1.el7_9.src.rpm\n\nx86_64:\nrh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-apphost-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-debuginfo-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-host-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-hostfxr-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-sdk-5.0-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-templates-5.0-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-netstandard-targeting-pack-2.1-5.0.103-1.el7_9.x86_64.rpm\n\n.NET Core on Red Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nrh-dotnet50-dotnet-5.0.103-1.el7_9.src.rpm\n\nx86_64:\nrh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-apphost-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-debuginfo-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-host-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-hostfxr-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-runtime-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-sdk-5.0-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-targeting-pack-5.0-5.0.3-1.el7_9.x86_64.rpm\nrh-dotnet50-dotnet-templates-5.0-5.0.103-1.el7_9.x86_64.rpm\nrh-dotnet50-netstandard-targeting-pack-2.1-5.0.103-1.el7_9.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security.  Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2021-1721\nhttps://access.redhat.com/security/updates/classification/#important\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. 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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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