Red Hat Security Advisory: .NET 8.0 security update
.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 8.0.110 and .NET Runtime 8.0.10. Security Fix(es): * dotnet: kestrel: closing an HTTP/3 stream can cause a race condition and lead to remote code execution (CVE-2024-38229) * dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483) * dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484) * dotnet: Denial of Service in System.Text.Json (CVE-2024-43485) 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.Security Fix(es): * dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484) * dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483) * dotnet: Denial of Service in System.Text.Json (CVE-2024-43485) * dotnet: kestrel: closing an HTTP/3 stream can cause a race condition and lead to remote code execution (CVE-2024-38229) 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.
AI Analysis
Technical Summary
.NET 8.0 on Red Hat Enterprise Linux 9 contains multiple security vulnerabilities. CVE-2024-38229 describes a race condition in the Kestrel HTTP/3 stream closure that can lead to remote code execution. CVE-2024-43483 involves hash flooding vulnerabilities affecting multiple .NET components. CVE-2024-43484 and CVE-2024-43485 describe denial of service issues in System.IO.Packaging (due to SortedList usage) and System.Text.Json respectively. Red Hat has issued official patches in .NET SDK 8.0.110 and .NET Runtime 8.0.10 to address these vulnerabilities. The advisory rates the overall impact as Important with a high severity CVSS vector for CVE-2024-38229. No known exploits in the wild have been reported. The affected platforms include Red Hat Enterprise Linux 9 variants across multiple architectures (x86_64, s390x, ppc64le, aarch64).
Potential Impact
Successful exploitation of CVE-2024-38229 can lead to remote code execution due to a race condition in Kestrel HTTP/3 stream handling. The other vulnerabilities (CVE-2024-43483, CVE-2024-43484, CVE-2024-43485) can cause denial of service conditions through hash flooding and resource exhaustion in .NET components. These impacts can disrupt service availability and compromise system integrity. The CVSS vector for CVE-2024-38229 indicates high confidentiality, integrity, and availability impact with network attack vector and no privileges required.
Mitigation Recommendations
An official fix is available from Red Hat. Users should update to .NET SDK 8.0.110 and .NET Runtime 8.0.10 as provided in Red Hat Enterprise Linux 9 updates. Refer to the Red Hat advisory RHSA-2024:7869 and the article https://access.redhat.com/articles/11258 for detailed update instructions. Applying these updates will remediate the vulnerabilities. No additional mitigation is required beyond applying the official patches.
Red Hat Security Advisory: .NET 8.0 security update
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 8.0.110 and .NET Runtime 8.0.10. Security Fix(es): * dotnet: kestrel: closing an HTTP/3 stream can cause a race condition and lead to remote code execution (CVE-2024-38229) * dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483) * dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484) * dotnet: Denial of Service in System.Text.Json (CVE-2024-43485) 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.Security Fix(es): * dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484) * dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483) * dotnet: Denial of Service in System.Text.Json (CVE-2024-43485) * dotnet: kestrel: closing an HTTP/3 stream can cause a race condition and lead to remote code execution (CVE-2024-38229) 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.
CVSS v3.1
Score 8.1high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
.NET 8.0 on Red Hat Enterprise Linux 9 contains multiple security vulnerabilities. CVE-2024-38229 describes a race condition in the Kestrel HTTP/3 stream closure that can lead to remote code execution. CVE-2024-43483 involves hash flooding vulnerabilities affecting multiple .NET components. CVE-2024-43484 and CVE-2024-43485 describe denial of service issues in System.IO.Packaging (due to SortedList usage) and System.Text.Json respectively. Red Hat has issued official patches in .NET SDK 8.0.110 and .NET Runtime 8.0.10 to address these vulnerabilities. The advisory rates the overall impact as Important with a high severity CVSS vector for CVE-2024-38229. No known exploits in the wild have been reported. The affected platforms include Red Hat Enterprise Linux 9 variants across multiple architectures (x86_64, s390x, ppc64le, aarch64).
Potential Impact
Successful exploitation of CVE-2024-38229 can lead to remote code execution due to a race condition in Kestrel HTTP/3 stream handling. The other vulnerabilities (CVE-2024-43483, CVE-2024-43484, CVE-2024-43485) can cause denial of service conditions through hash flooding and resource exhaustion in .NET components. These impacts can disrupt service availability and compromise system integrity. The CVSS vector for CVE-2024-38229 indicates high confidentiality, integrity, and availability impact with network attack vector and no privileges required.
Mitigation Recommendations
An official fix is available from Red Hat. Users should update to .NET SDK 8.0.110 and .NET Runtime 8.0.10 as provided in Red Hat Enterprise Linux 9 updates. Refer to the Red Hat advisory RHSA-2024:7869 and the article https://access.redhat.com/articles/11258 for detailed update instructions. Applying these updates will remediate the vulnerabilities. No additional mitigation is required beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:7869
- Cve Count
- 4
- Additional Cves
- ["CVE-2024-43483","CVE-2024-43484","CVE-2024-43485"]
- Cvss Version
- 3.1
- Remediation Level
- official-fix
Threat ID: 6a294f768dd33fbd853d3d2d
Added to database: 06/10/2026, 11:50:14 UTC
Last enriched: 07/04/2026, 01:18:18 UTC
Last updated: 09/10/2026, 19:24:54 UTC
Views: 60
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.