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    RedHat: RHSA-2021-0095:01 Important: dotnet3.1 security and bugfix update

    Date 13 Jan 2021
    207
    Posted By LinuxSecurity Advisories
    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,
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    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: dotnet3.1 security and bugfix update
    Advisory ID:       RHSA-2021:0095-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0095
    Issue date:        2021-01-13
    CVE Names:         CVE-2021-1723 
    =====================================================================
    
    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 3.1.111 and .NET Core
    Runtime 3.1.11.
    
    Security Fix(es):
    
    * dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock
    when using HTTP2 (CVE-2021-1723)
    
    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/):
    
    1914258 - CVE-2021-1723 dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2
    
    6. Package List:
    
    Red Hat Enterprise Linux AppStream (v. 8):
    
    Source:
    dotnet3.1-3.1.111-1.el8_3.src.rpm
    
    x86_64:
    aspnetcore-runtime-3.1-3.1.11-1.el8_3.x86_64.rpm
    aspnetcore-targeting-pack-3.1-3.1.11-1.el8_3.x86_64.rpm
    dotnet-apphost-pack-3.1-3.1.11-1.el8_3.x86_64.rpm
    dotnet-apphost-pack-3.1-debuginfo-3.1.11-1.el8_3.x86_64.rpm
    dotnet-hostfxr-3.1-3.1.11-1.el8_3.x86_64.rpm
    dotnet-hostfxr-3.1-debuginfo-3.1.11-1.el8_3.x86_64.rpm
    dotnet-runtime-3.1-3.1.11-1.el8_3.x86_64.rpm
    dotnet-runtime-3.1-debuginfo-3.1.11-1.el8_3.x86_64.rpm
    dotnet-sdk-3.1-3.1.111-1.el8_3.x86_64.rpm
    dotnet-sdk-3.1-debuginfo-3.1.111-1.el8_3.x86_64.rpm
    dotnet-targeting-pack-3.1-3.1.11-1.el8_3.x86_64.rpm
    dotnet-templates-3.1-3.1.111-1.el8_3.x86_64.rpm
    dotnet3.1-debuginfo-3.1.111-1.el8_3.x86_64.rpm
    dotnet3.1-debugsource-3.1.111-1.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-2021-1723
    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.
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