var-201711-0194
Vulnerability from variot

.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly parsing certificate data. A denial of service vulnerability exists when .NET Core improperly handles parsing certificate data, aka ".NET CORE Denial Of Service Vulnerability". ASP.NET Core 1.0, 1.1 and 2.0 are vulnerable. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

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

Synopsis: Low: .NET Core security update Advisory ID: RHSA-2017:3248-01 Product: dotNET on RHEL Advisory URL: https://access.redhat.com/errata/RHSA-2017:3248 Issue date: 2017-11-20 CVE Names: CVE-2017-8585 CVE-2017-11770 =====================================================================

  1. Summary:

A security update for .NET Core on RHEL is now available.

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

dotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 dotNET on RHEL for Red Hat Enterprise Linux Server (v. 7) - x86_64 dotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7) - x86_64

  1. Description:

New versions of .NET Core that address several security vulnerabilities are now available. The updated versions are .NET Core 1.0.8, 1.1.5 and 2.0.3. (CVE-2017-11770)

  1. 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

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

1512982 - CVE-2017-8585 dotNet: DDoS via invalid culture 1512992 - CVE-2017-11770 dotNET: DDos via bad certificate

  1. Package List:

dotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7):

Source: rh-dotnetcore10-dotnetcore-1.0.8-1.el7.src.rpm

x86_64: rh-dotnetcore10-dotnetcore-1.0.8-1.el7.x86_64.rpm rh-dotnetcore10-dotnetcore-debuginfo-1.0.8-1.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7):

Source: rh-dotnetcore11-dotnetcore-1.1.5-1.el7.src.rpm

x86_64: rh-dotnetcore11-dotnetcore-1.1.5-1.el7.x86_64.rpm rh-dotnetcore11-dotnetcore-debuginfo-1.1.5-1.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7):

Source: rh-dotnet20-dotnet-2.0.3-4.el7.src.rpm

x86_64: rh-dotnet20-dotnet-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-debuginfo-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-host-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-runtime-2.0-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-sdk-2.0-2.0.3-4.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux Server (v. 7):

Source: rh-dotnetcore10-dotnetcore-1.0.8-1.el7.src.rpm

x86_64: rh-dotnetcore10-dotnetcore-1.0.8-1.el7.x86_64.rpm rh-dotnetcore10-dotnetcore-debuginfo-1.0.8-1.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux Server (v. 7):

Source: rh-dotnetcore11-dotnetcore-1.1.5-1.el7.src.rpm

x86_64: rh-dotnetcore11-dotnetcore-1.1.5-1.el7.x86_64.rpm rh-dotnetcore11-dotnetcore-debuginfo-1.1.5-1.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux Server (v. 7):

Source: rh-dotnet20-dotnet-2.0.3-4.el7.src.rpm

x86_64: rh-dotnet20-dotnet-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-debuginfo-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-host-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-runtime-2.0-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-sdk-2.0-2.0.3-4.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7):

Source: rh-dotnetcore10-dotnetcore-1.0.8-1.el7.src.rpm

x86_64: rh-dotnetcore10-dotnetcore-1.0.8-1.el7.x86_64.rpm rh-dotnetcore10-dotnetcore-debuginfo-1.0.8-1.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7):

Source: rh-dotnetcore11-dotnetcore-1.1.5-1.el7.src.rpm

x86_64: rh-dotnetcore11-dotnetcore-1.1.5-1.el7.x86_64.rpm rh-dotnetcore11-dotnetcore-debuginfo-1.1.5-1.el7.x86_64.rpm

dotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7):

Source: rh-dotnet20-dotnet-2.0.3-4.el7.src.rpm

x86_64: rh-dotnet20-dotnet-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-debuginfo-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-host-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-runtime-2.0-2.0.3-4.el7.x86_64.rpm rh-dotnet20-dotnet-sdk-2.0-2.0.3-4.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-2017-8585 https://access.redhat.com/security/cve/CVE-2017-11770 https://access.redhat.com/security/updates/classification/#low

https://github.com/dotnet/announcements/issues/34 https://github.com/dotnet/announcements/issues/44

https://github.com/dotnet/core/blob/master/release-notes/2.0/2.0.3.md https://github.com/dotnet/core/blob/master/release-notes/1.1/1.1.5.md https://github.com/dotnet/core/blob/master/release-notes/1.0/1.0.8.md

  1. Contact:

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

Copyright 2017 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 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly parsing certificate data. A denial of service vulnerability exists when .NET Core improperly handles parsing certificate data, aka \".NET CORE Denial Of Service Vulnerability\". \nASP.NET Core 1.0, 1.1 and 2.0 are vulnerable. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n=====================================================================\n                   Red Hat Security Advisory\n\nSynopsis:          Low: .NET Core security update\nAdvisory ID:       RHSA-2017:3248-01\nProduct:           dotNET on RHEL\nAdvisory URL:      https://access.redhat.com/errata/RHSA-2017:3248\nIssue date:        2017-11-20\nCVE Names:         CVE-2017-8585 CVE-2017-11770 \n=====================================================================\n\n1. Summary:\n\nA security update for .NET Core on RHEL is now available. \n\nRed Hat Product Security has rated this update as having a security impact\nof Low. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\ndotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64\ndotNET on RHEL for Red Hat Enterprise Linux Server (v. 7) - x86_64\ndotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7) - x86_64\n\n3. Description:\n\nNew versions of .NET Core that address several security vulnerabilities are\nnow available. The updated versions are .NET Core 1.0.8, 1.1.5 and 2.0.3. (CVE-2017-11770)\n\n4. Solution:\n\nBefore applying this update, make sure all previously released errata\nrelevant to your system have been applied. \n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258\n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1512982 - CVE-2017-8585 dotNet: DDoS via invalid culture\n1512992 - CVE-2017-11770 dotNET: DDos via bad certificate\n\n6. Package List:\n\ndotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\nrh-dotnetcore10-dotnetcore-1.0.8-1.el7.src.rpm\n\nx86_64:\nrh-dotnetcore10-dotnetcore-1.0.8-1.el7.x86_64.rpm\nrh-dotnetcore10-dotnetcore-debuginfo-1.0.8-1.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\nrh-dotnetcore11-dotnetcore-1.1.5-1.el7.src.rpm\n\nx86_64:\nrh-dotnetcore11-dotnetcore-1.1.5-1.el7.x86_64.rpm\nrh-dotnetcore11-dotnetcore-debuginfo-1.1.5-1.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux ComputeNode (v. 7):\n\nSource:\nrh-dotnet20-dotnet-2.0.3-4.el7.src.rpm\n\nx86_64:\nrh-dotnet20-dotnet-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-debuginfo-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-host-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-runtime-2.0-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-sdk-2.0-2.0.3-4.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux Server (v. 7):\n\nSource:\nrh-dotnetcore10-dotnetcore-1.0.8-1.el7.src.rpm\n\nx86_64:\nrh-dotnetcore10-dotnetcore-1.0.8-1.el7.x86_64.rpm\nrh-dotnetcore10-dotnetcore-debuginfo-1.0.8-1.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux Server (v. 7):\n\nSource:\nrh-dotnetcore11-dotnetcore-1.1.5-1.el7.src.rpm\n\nx86_64:\nrh-dotnetcore11-dotnetcore-1.1.5-1.el7.x86_64.rpm\nrh-dotnetcore11-dotnetcore-debuginfo-1.1.5-1.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux Server (v. 7):\n\nSource:\nrh-dotnet20-dotnet-2.0.3-4.el7.src.rpm\n\nx86_64:\nrh-dotnet20-dotnet-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-debuginfo-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-host-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-runtime-2.0-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-sdk-2.0-2.0.3-4.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nrh-dotnetcore10-dotnetcore-1.0.8-1.el7.src.rpm\n\nx86_64:\nrh-dotnetcore10-dotnetcore-1.0.8-1.el7.x86_64.rpm\nrh-dotnetcore10-dotnetcore-debuginfo-1.0.8-1.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nrh-dotnetcore11-dotnetcore-1.1.5-1.el7.src.rpm\n\nx86_64:\nrh-dotnetcore11-dotnetcore-1.1.5-1.el7.x86_64.rpm\nrh-dotnetcore11-dotnetcore-debuginfo-1.1.5-1.el7.x86_64.rpm\n\ndotNET on RHEL for Red Hat Enterprise Linux Workstation (v. 7):\n\nSource:\nrh-dotnet20-dotnet-2.0.3-4.el7.src.rpm\n\nx86_64:\nrh-dotnet20-dotnet-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-debuginfo-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-host-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-runtime-2.0-2.0.3-4.el7.x86_64.rpm\nrh-dotnet20-dotnet-sdk-2.0-2.0.3-4.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-2017-8585\nhttps://access.redhat.com/security/cve/CVE-2017-11770\nhttps://access.redhat.com/security/updates/classification/#low\n\nhttps://github.com/dotnet/announcements/issues/34\nhttps://github.com/dotnet/announcements/issues/44\n\nhttps://github.com/dotnet/core/blob/master/release-notes/2.0/2.0.3.md\nhttps://github.com/dotnet/core/blob/master/release-notes/1.1/1.1.5.md\nhttps://github.com/dotnet/core/blob/master/release-notes/1.0/1.0.8.md\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. 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