RedHat: RHSA-2021-0476:01 Important: dotnet5.0 security and bugfix update
Summary
.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.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2021-1721 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux AppStream (v. 8):
Source:
dotnet5.0-5.0.103-1.el8_3.src.rpm
x86_64:
aspnetcore-runtime-5.0-5.0.3-1.el8_3.x86_64.rpm
aspnetcore-targeting-pack-5.0-5.0.3-1.el8_3.x86_64.rpm
dotnet-5.0.103-1.el8_3.x86_64.rpm
dotnet-apphost-pack-5.0-5.0.3-1.el8_3.x86_64.rpm
dotnet-apphost-pack-5.0-debuginfo-5.0.3-1.el8_3.x86_64.rpm
dotnet-host-5.0.3-1.el8_3.x86_64.rpm
dotnet-host-debuginfo-5.0.3-1.el8_3.x86_64.rpm
dotnet-hostfxr-5.0-5.0.3-1.el8_3.x86_64.rpm
dotnet-hostfxr-5.0-debuginfo-5.0.3-1.el8_3.x86_64.rpm
dotnet-runtime-5.0-5.0.3-1.el8_3.x86_64.rpm
dotnet-runtime-5.0-debuginfo-5.0.3-1.el8_3.x86_64.rpm
dotnet-sdk-5.0-5.0.103-1.el8_3.x86_64.rpm
dotnet-sdk-5.0-debuginfo-5.0.103-1.el8_3.x86_64.rpm
dotnet-targeting-pack-5.0-5.0.3-1.el8_3.x86_64.rpm
dotnet-templates-5.0-5.0.103-1.el8_3.x86_64.rpm
dotnet5.0-debuginfo-5.0.103-1.el8_3.x86_64.rpm
dotnet5.0-debugsource-5.0.103-1.el8_3.x86_64.rpm
netstandard-targeting-pack-2.1-5.0.103-1.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/
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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AppStream (v. 8) - x86_64
Bugs Fixed
1926918 - CVE-2021-1721 dotnet: certificate chain building recursion Denial of Service
