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Red Hat Product Errata RHSA-2021:0476 - Security Advisory
Issued:
2021-02-10
Updated:
2021-02-10

RHSA-2021:0476 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: dotnet5.0 security and bugfix update

Type/Severity

Security Advisory: Important

Topic

An update for .NET 5.0 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.

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.

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

Affected Products

  • Red Hat Enterprise Linux for x86_64 8 x86_64

Fixes

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

CVEs

  • CVE-2021-1721

References

  • https://access.redhat.com/security/updates/classification/#important
  • Note: More recent versions of these packages may be available. Click a package name for more details.

    Red Hat Enterprise Linux for x86_64 8

    SRPM
    dotnet5.0-5.0.103-1.el8_3.src.rpm SHA-256: 11ea5490a6a7f417ce02a37b5604f0581d21c8b73d1abe724485121355ed811f
    x86_64
    aspnetcore-runtime-5.0-5.0.3-1.el8_3.x86_64.rpm SHA-256: d6021fdfd323d984d15133b04d95b6b3fc9fb411dea5dc4eca910347c2eebdf1
    aspnetcore-targeting-pack-5.0-5.0.3-1.el8_3.x86_64.rpm SHA-256: ce68d69706568a0e998c71b11654bcd464d3c44e73c5986abf02c7dc4b0d5452
    dotnet-5.0.103-1.el8_3.x86_64.rpm SHA-256: 33d1c5041af834887ec159bb1f3e598ee9975368650b8048668d2e0bf223883e
    dotnet-apphost-pack-5.0-5.0.3-1.el8_3.x86_64.rpm SHA-256: 65fdc60a581fe0c6118b82b5a9a1e60c16d5e9a43c6ce1d66eabc956ddde25a0
    dotnet-apphost-pack-5.0-debuginfo-5.0.3-1.el8_3.x86_64.rpm SHA-256: e085f3e6c7794bd20285be99b7281208b544f9f73df00a3f1f5230963d9b12db
    dotnet-host-5.0.3-1.el8_3.x86_64.rpm SHA-256: b87ecc93bd3e7eb298d3d70e3e206ddd176b4816fad8380af5a06acb05408823
    dotnet-host-debuginfo-5.0.3-1.el8_3.x86_64.rpm SHA-256: 20b8fe77b1eb7fe3314aba564d87fba18d1d4d79c9e615a209ee533dd7e18cfc
    dotnet-hostfxr-5.0-5.0.3-1.el8_3.x86_64.rpm SHA-256: cd05bf20178a168e8c6c6ea12777acf208ff474eaaafb538f9cd682b5cd51f2a
    dotnet-hostfxr-5.0-debuginfo-5.0.3-1.el8_3.x86_64.rpm SHA-256: cf7bbfeeec36e98a25f3484579e0706726a7bda26c1161e8f216e617c806e100
    dotnet-runtime-5.0-5.0.3-1.el8_3.x86_64.rpm SHA-256: 1c46057b34fb08909f8c16093cdacfb68f29c3482079c21cd01c5437248f11bb
    dotnet-runtime-5.0-debuginfo-5.0.3-1.el8_3.x86_64.rpm SHA-256: 4191102a5a159bfdf804f35e7c343e32477983be82de69dc5f8ba24652a49134
    dotnet-sdk-5.0-5.0.103-1.el8_3.x86_64.rpm SHA-256: 2a7d24ec6c843a677765658535215abe655ac30945d09d75cd0df8a75c9d937d
    dotnet-sdk-5.0-debuginfo-5.0.103-1.el8_3.x86_64.rpm SHA-256: 94acf4554311fb39eb20e5403d2c49544979bb40646aa73fcd7517c1e57ea291
    dotnet-targeting-pack-5.0-5.0.3-1.el8_3.x86_64.rpm SHA-256: f388f9e46fbb5f820a27c5a8f1b902ac374834326793ac9b197f56208ba16020
    dotnet-templates-5.0-5.0.103-1.el8_3.x86_64.rpm SHA-256: 87adaf1e37e8eeaf6a7ccd435077833bfc667e49ed61bf9626641df132fc6ea2
    dotnet5.0-debuginfo-5.0.103-1.el8_3.x86_64.rpm SHA-256: b5912f5c52e4842d18c86be29b1b0c920c46b37162eba26eae544a072bd88bbe
    dotnet5.0-debugsource-5.0.103-1.el8_3.x86_64.rpm SHA-256: 82784a441d672500d2728298128634c0d5c9e289583b860944a345dc9cae46a0
    netstandard-targeting-pack-2.1-5.0.103-1.el8_3.x86_64.rpm SHA-256: 1f5868927ce07cde11e2dd4ca53ba67f9d44db5d705bcb51e0caad39054f29f4

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

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