Stay Secure with the Latest Linux Advisories

security advisoryRed Hatremote code execution

Red Hat 8 RHSA-2021:0790-01 Critical: dotnet Core Remote Execution

An update for .NET Core 3.1 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: dotnet3.1 security and bugfix update Advisory ID: RHSA-2021:0790-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0790 Issue date: 2021-03-09 CVE Names: CVE-2021-26701 ==================================================================== 1. Summary: An update for .NET Core 3.1 is now available for Red Hat Enterprise Linux 8. 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - x86_64 3. 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 3.1.113 and .NET Core Runtime 3.1.13. Security Fix(es): * dotnet: System.Text.Encodings.Web Remote Code Execution (CVE-2021-26701) 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. 4. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1933740 - CVE-2021-26701dotnet: System.Text.Encodings.Web Remote Code Execution 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: dotnet3.1-3.1.113-1.el8_3.src.rpm x86_64: aspnetcore-runtime-3.1-3.1.13-1.el8_3.x86_64.rpm aspnetcore-targeting-pack-3.1-3.1.13-1.el8_3.x86_64.rpm dotnet-apphost-pack-3.1-3.1.13-1.el8_3.x86_64.rpm dotnet-apphost-pack-3.1-debuginfo-3.1.13-1.el8_3.x86_64.rpm dotnet-hostfxr-3.1-3.1.13-1.el8_3.x86_64.rpm dotnet-hostfxr-3.1-debuginfo-3.1.13-1.el8_3.x86_64.rpm dotnet-runtime-3.1-3.1.13-1.el8_3.x86_64.rpm dotnet-runtime-3.1-debuginfo-3.1.13-1.el8_3.x86_64.rpm dotnet-sdk-3.1-3.1.113-1.el8_3.x86_64.rpm dotnet-sdk-3.1-debuginfo-3.1.113-1.el8_3.x86_64.rpm dotnet-targeting-pack-3.1-3.1.13-1.el8_3.x86_64.rpm dotnet-templates-3.1-3.1.113-1.el8_3.x86_64.rpm dotnet3.1-debuginfo-3.1.113-1.el8_3.x86_64.rpm dotnet3.1-debugsource-3.1.113-1.el8_3.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/ 7. References: https://access.redhat.com/security/cve/CVE-2021-26701 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPGv1 iQIVAwUBYEfWZtzjgjWX9erEAQgevg/+O+xN5i20ryho/tS8sx6TuUc7mygiK2pG cSVpdXSqBtnGLprmEqpfvtjAtF9BqOZzwkWtqJoU/5xRl08qEczPdLuKmX74qmzw dnoqJBUhTAJ4W2ccheNMulrUw7YykxLKtrpJvsAZElZigHuo//qV8KSirP6oaWVV /zF8HFY2bSturUraEdeLFsOZyebJ68V1jqVdgBz8WbE9aV5hvfnYVbXN4LAjmB4V ynzD8M6am1+DsB/12Zt+O6ShAUZ9d5KwCXUo0h/nxBgIajHu7A2436ZNpZhBKsmt 1wvkmM2tHW8TfHO1+tfbqRZrv3cdDIOzV+ukTPQY1OjUzSVOoyL05w0qkX2gQgtD 7dAhaewLfcwQrgdhPRv83efwaQy6fbzhndgYvI7MmSGQXQubL6EArzgySbjXZUmD JG10817tWx2T/HTaQ/uembnzG+VwphwmTBzws9Y2w2pGPk/GjEixCujleQIWitUC xEluXX2ncT8YtX8vSGKc4rATf2btXCKLtj94ifm9K776x6q8Xy7I2ipL//4kTuka /YkwA/6RkkM95ez7aRpavafmZ2KIgU5PP6m/c+kQss7QMOdd7E0EQL2kkCP+d7Fg 7B1zdcwNSgk24UC3kH0fiO5i+sUjLYz9TuXMZ1mylJxGgyEY1iZy5/lUa6k8IJHI T3CgWcWtbgU=AroI -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://listman.redhat.com/mailman/listinfo/rhsa-announce . Urgent vulnerability patch for .NET Core 3.1 on Red Hat systems. This update mitigates risks associated with remote code execution and includes essential system enhancements.. Red Hat Enterprise, dotnet update, important security advisory, remote execution fix. . Severity: Important. LinuxSecurity.com Team

Mar 09, 2021 •Important Red Hat