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RHEL 7: RHSA-2022-0828 Important: ASP.NET Denial of Service Fix

red hat
Calendar Grey March 10, 2022
Dist Redhat Esm H88
Alert: .NET 5.0 release tackles vulnerabilities found in RHEL 7. Essential updates offered for corporate clients.
An update for .NET 5.0 is now available for Red Hat Enterprise Linux 7

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 impact Denial of Service bugfix ASP.NET RHEL 7 dotnet update

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

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7):
Source: rh-dotnet50-dotnet-5.0.212-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.212-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-debuginfo-5.0.212-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-host-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-hostfxr-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-runtime-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-5.0.212-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-sdk-5.0-source-built-artifacts-5.0.212-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-targeting-pack-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-templates-5.0-5.0.212-1.el7_9.x86_64.rpm rh-dotnet50-netstandard-targeting-pack-2.1-5.0.212-1.el7_9.x86_64.rpm
.NET Core on Red Hat Enterprise Linux Server (v. 7):
Source: rh-dotnet50-dotnet-5.0.212-1.el7_9.src.rpm
x86_64: rh-dotnet50-aspnetcore-runtime-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.15-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-5.0.212-1.el7_9.x86_64.rpm rh-dotnet50-dotnet-apphost-pack-5.0-5.0.15-1.el7_9.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0828-01
Product: .NET Core on Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0828
Issue date: 2022-03-10

Topic

An update for .NET 5.0 is now available for Red Hat Enterprise Linux 7.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 impact Denial of Service bugfix ASP.NET RHEL 7 dotnet update

Relevant Releases Architectures

.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

.NET Core on Red Hat Enterprise Linux Server (v. 7) - x86_64

.NET Core on Red Hat Enterprise Linux Workstation (v. 7) - 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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