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Red Hat Enterprise Linux 8.6 RHSA-2023:4448-01 Critical Remote Code Exec

red hat
Calendar Grey August 3, 2023
Dist Redhat Esm H88
Essential .NET 6.0 security patch for Red Hat Enterprise Linux 8.6 tackles remote execution vulnerabilities and denial of service threats.
An update for .NET 6.0 is now available for Red Hat Enterprise Linux 8.6 Extended Update Support

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 a security vulnerability are now available. The updated versions are .NET SDK 6.0.120 and .NET Runtime 6.0.20.
Security Fix(es):
* dotnet: .NET Kestrel: Denial of Service processing X509 Certificates (CVE-2023-29331)
* dotnet: vulnerability exists in NuGet where a potential race condition can lead to a symlink attack (CVE-2023-29337)
* dotnet: Remote Code Execution - Source generators issue can lead to a crash due to unmanaged heap corruption (CVE-2023-33128)
* dotnet: race condition in Core SignInManager PasswordSignInAsync method (CVE-2023-33170)
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 denial of service update red hat remote code execution important dotnet

References

https://access.redhat.com/security/cve/CVE-2023-29331 https://access.redhat.com/security/cve/CVE-2023-29337 https://access.redhat.com/security/cve/CVE-2023-33128 https://access.redhat.com/security/cve/CVE-2023-33170 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream EUS (v.8.6):
Source: dotnet6.0-6.0.120-1.el8_6.src.rpm
aarch64: aspnetcore-runtime-6.0-6.0.20-1.el8_6.aarch64.rpm aspnetcore-targeting-pack-6.0-6.0.20-1.el8_6.aarch64.rpm dotnet-6.0.120-1.el8_6.aarch64.rpm dotnet-apphost-pack-6.0-6.0.20-1.el8_6.aarch64.rpm dotnet-apphost-pack-6.0-debuginfo-6.0.20-1.el8_6.aarch64.rpm dotnet-host-6.0.20-1.el8_6.aarch64.rpm dotnet-host-debuginfo-6.0.20-1.el8_6.aarch64.rpm dotnet-hostfxr-6.0-6.0.20-1.el8_6.aarch64.rpm dotnet-hostfxr-6.0-debuginfo-6.0.20-1.el8_6.aarch64.rpm dotnet-runtime-6.0-6.0.20-1.el8_6.aarch64.rpm dotnet-runtime-6.0-debuginfo-6.0.20-1.el8_6.aarch64.rpm dotnet-sdk-6.0-6.0.120-1.el8_6.aarch64.rpm dotnet-sdk-6.0-debuginfo-6.0.120-1.el8_6.aarch64.rpm dotnet-targeting-pack-6.0-6.0.20-1.el8_6.aarch64.rpm dotnet-templates-6.0-6.0.120-1.el8_6.aarch64.rpm dotnet6.0-debuginfo-6.0.120-1.el8_6.aarch64.rpm dotnet6.0-debugsource-6.0.120-1.el8_6.aarch64.rpm netstandard-targeting-pack-2.1-6.0.120-1.el8_6.aarch64.rpm
s390x: aspnetcore-runtime-6.0-6.0.20-1.el8_6.s390x.rpm aspnetcore-targeting-pack-6.0-6.0.20-1.el8_6.s390x.rpm dotnet-6.0.120-1.el8_6.s390x.rpm dotnet-apphost-pack-6.0-6.0.20-1.el8_6.s390x.rpm dotnet-apphost-pack-6.0-debuginfo-6.0.20-1.el8_6.s390x.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4448-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4448
Issue date: 2023-08-03

Topic

An update for .NET 6.0 is now available for Red Hat Enterprise Linux 8.6Extended Update Support.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 denial of service update red hat remote code execution important dotnet

Relevant Releases Architectures

Red Hat CodeReady Linux Builder EUS (v.8.6) - aarch64, s390x, x86_64

Red Hat Enterprise Linux AppStream EUS (v.8.6) - aarch64, s390x, x86_64

Bugs Fixed

2212617 - CVE-2023-29331 dotnet: .NET Kestrel: Denial of Service processing X509 Certificates

2212618 - CVE-2023-33128 dotnet: Remote Code Execution - Source generators issue can lead to a crash due to unmanaged heap corruption

2213703 - CVE-2023-29337 dotnet: vulnerability exists in NuGet where a potential race condition can lead to a symlink attack

2221854 - CVE-2023-33170 dotnet: race condition in Core SignInManager PasswordSignInAsync method

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