var-202008-0730
Vulnerability from variot

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. The update addresses the vulnerability by correcting how the ASP.NET Core web application handles web requests. (DoS) Vulnerability exists. Microsoft ASP.NET Core is a cross-platform open source framework developed by Microsoft (Microsoft). The framework is used to build cloud-based applications such as web apps, IoT apps, and mobile backends. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

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

Synopsis: Important: .NET Core 3.1 security and bugfix update for Red Hat Enterprise Linux Advisory ID: RHSA-2020:3421-01 Product: .NET Core on Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:3421 Issue date: 2020-08-11 CVE Names: CVE-2020-1597 ==================================================================== 1. Summary:

An update for rh-dotnet31-dotnet is now available for .NET Core 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 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 a security vulnerability are now available. The updated versions are .NET Core SDK 3.1.107 and .NET Core Runtime 3.1.7.

Security Fix(es):

  • .NET Core: ASP.NET Core Resource Consumption Denial of Service (CVE-2020-1597)

Default inclusions for applications built with .NET Core have been updated to reference the newest versions and their security fixes.

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. Package List:

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

Source: rh-dotnet31-dotnet-3.1.107-1.el7.src.rpm

x86_64: rh-dotnet31-aspnetcore-runtime-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-apphost-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-debuginfo-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-host-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-hostfxr-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-runtime-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-sdk-3.1-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-templates-3.1-3.1.107-1.el7.x86_64.rpm rh-dotnet31-netstandard-targeting-pack-2.1-3.1.107-1.el7.x86_64.rpm

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

Source: rh-dotnet31-dotnet-3.1.107-1.el7.src.rpm

x86_64: rh-dotnet31-aspnetcore-runtime-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-apphost-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-debuginfo-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-host-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-hostfxr-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-runtime-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-sdk-3.1-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-templates-3.1-3.1.107-1.el7.x86_64.rpm rh-dotnet31-netstandard-targeting-pack-2.1-3.1.107-1.el7.x86_64.rpm

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

Source: rh-dotnet31-dotnet-3.1.107-1.el7.src.rpm

x86_64: rh-dotnet31-aspnetcore-runtime-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-apphost-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-debuginfo-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-host-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-hostfxr-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-runtime-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-sdk-3.1-3.1.107-1.el7.x86_64.rpm rh-dotnet31-dotnet-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm rh-dotnet31-dotnet-templates-3.1-3.1.107-1.el7.x86_64.rpm rh-dotnet31-netstandard-targeting-pack-2.1-3.1.107-1.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/

  1. References:

https://access.redhat.com/security/cve/CVE-2020-1597 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 2020 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": "A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerability can be exploited remotely, without authentication. \nA remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. \nThe update addresses the vulnerability by correcting how the ASP.NET Core web application handles web requests. (DoS) Vulnerability exists. Microsoft ASP.NET Core is a cross-platform open source framework developed by Microsoft (Microsoft). The framework is used to build cloud-based applications such as web apps, IoT apps, and mobile backends. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n====================================================================                   \nRed Hat Security Advisory\n\nSynopsis:          Important: .NET Core 3.1 security and bugfix update for Red Hat Enterprise Linux\nAdvisory ID:       RHSA-2020:3421-01\nProduct:           .NET Core on Red Hat Enterprise Linux\nAdvisory URL:      https://access.redhat.com/errata/RHSA-2020:3421\nIssue date:        2020-08-11\nCVE Names:         CVE-2020-1597\n====================================================================\n1. Summary:\n\nAn update for rh-dotnet31-dotnet is now available for .NET Core 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 Core is a managed-software framework. It implements a subset of the\n.NET framework APIs and several new APIs, and it includes a CLR\nimplementation. \n\nNew versions of .NET Core that address a security vulnerability are now\navailable. The updated versions are .NET Core SDK 3.1.107 and .NET Core\nRuntime 3.1.7. \n\nSecurity Fix(es):\n\n* .NET Core: ASP.NET Core Resource Consumption Denial of Service\n(CVE-2020-1597)\n\nDefault inclusions for applications built with .NET Core have been updated\nto reference the newest versions and their security fixes. \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. Package List:\n\n.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\nrh-dotnet31-dotnet-3.1.107-1.el7.src.rpm\n\nx86_64:\nrh-dotnet31-aspnetcore-runtime-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-apphost-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-debuginfo-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-host-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-hostfxr-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-runtime-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-sdk-3.1-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-templates-3.1-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-netstandard-targeting-pack-2.1-3.1.107-1.el7.x86_64.rpm\n\n.NET Core on Red Hat Enterprise Linux Server (v. 7):\n\nSource:\nrh-dotnet31-dotnet-3.1.107-1.el7.src.rpm\n\nx86_64:\nrh-dotnet31-aspnetcore-runtime-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-apphost-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-debuginfo-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-host-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-hostfxr-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-runtime-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-sdk-3.1-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-templates-3.1-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-netstandard-targeting-pack-2.1-3.1.107-1.el7.x86_64.rpm\n\n.NET Core on Red Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nrh-dotnet31-dotnet-3.1.107-1.el7.src.rpm\n\nx86_64:\nrh-dotnet31-aspnetcore-runtime-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-apphost-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-debuginfo-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-host-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-hostfxr-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-runtime-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-sdk-3.1-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-targeting-pack-3.1-3.1.7-1.el7.x86_64.rpm\nrh-dotnet31-dotnet-templates-3.1-3.1.107-1.el7.x86_64.rpm\nrh-dotnet31-netstandard-targeting-pack-2.1-3.1.107-1.el7.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-2020-1597\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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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.