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Red Hat Enterprise Linux 8: RHSA-2022-0830 Important ASP.NET Security Fix

red hat
Calendar Grey March 10, 2022
Dist Redhat Esm H88
Essential patch for .NET 5.0 on Red Hat platforms tackling significant security vulnerabilities, accompanied by comprehensive instructions.
An update for .NET 5.0 is now available for Red Hat Enterprise Linux 8

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

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 security vulnerabilities are now available. The updated versions are .NET SDK 5.0.212 and .NET Runtime 5.0.15.
Security Fix(es):
* dotnet: ASP.NET Denial of Service via FormPipeReader (CVE-2022-24464)
* dotnet: double parser stack buffer overrun (CVE-2022-24512)
* brotli: buffer overflow when input chunk is larger than 2GiB (CVE-2020-8927)
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.

Topics%20covered

Topics Covered

security advisory security update buffer overflow security fix Red Hat Enterprise Linux security impact ASP.NET Denial of Service

References

https://access.redhat.com/security/cve/CVE-2020-8927 https://access.redhat.com/security/cve/CVE-2022-24464 https://access.redhat.com/security/cve/CVE-2022-24512 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: dotnet5.0-5.0.212-1.el8_5.src.rpm
x86_64: aspnetcore-runtime-5.0-5.0.15-1.el8_5.x86_64.rpm aspnetcore-targeting-pack-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-apphost-pack-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-apphost-pack-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-hostfxr-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-hostfxr-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-runtime-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-runtime-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-sdk-5.0-5.0.212-1.el8_5.x86_64.rpm dotnet-sdk-5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet-targeting-pack-5.0-5.0.15-1.el8_5.x86_64.rpm dotnet-templates-5.0-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debugsource-5.0.212-1.el8_5.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 8):
x86_64: dotnet-apphost-pack-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-hostfxr-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-runtime-5.0-debuginfo-5.0.15-1.el8_5.x86_64.rpm dotnet-sdk-5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet-sdk-5.0-source-built-artifacts-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debuginfo-5.0.212-1.el8_5.x86_64.rpm dotnet5.0-debugsource-5.0.212-1.el8_5.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0830-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0830
Issue date: 2022-03-10

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.

Topics%20covered

Topics Covered

security advisory security update buffer overflow security fix Red Hat Enterprise Linux security impact ASP.NET Denial of Service

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - x86_64

Red Hat Enterprise Linux AppStream (v. 8) - x86_64

Bugs Fixed

1879225 - CVE-2020-8927 brotli: buffer overflow when input chunk is larger than 2GiB

2061847 - CVE-2022-24464 dotnet: ASP.NET Denial of Service via FormPipeReader

2061854 - CVE-2022-24512 dotnet: double parser stack buffer overrun

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