dotnet6.0 Security Update: Denial of Service Vulnerabilities
Summary
ALSA-2024:0808: Important: dotnet6.0 security update. Affects aspnetcore-runtime-6.0 versions < 6.0.27-1.el8_9. Fixed in 6.0.27-1.el8_9. How to fix ↓
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Background
The dotnet6.0 package is a managed-software framework that implements a subset of the .NET framework APIs and includes a CLR implementation. It provides developers with a platform to build and run applications across different operating systems and architectures. The dotnet6.0 package is vulnerable to two denial of service (DoS) vulnerabilities.
Vulnerability Detail
The first vulnerability, identified as CVE-2024-21386, allows an attacker to cause a DoS condition in SignalR server. SignalR is a library that simplifies real-time communication between clients and servers. Exploiting this vulnerability could lead to service disruption or unavailability.
The second vulnerability, identified as CVE-2024-21404, enables an attacker to trigger a DoS condition in X509Certificate2. X509Certificate2 is a class that represents an X.509 certificate. By exploiting this vulnerability, an attacker can cause the application to become unresponsive or crash.
How To Fix
Minimum fixed version
6.0.27-1.el8_9
This is the first release that contains the fix.
sudo dnf update aspnetcore-runtime-6.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There are no known workarounds for these vulnerabilities. It is essential to apply the security updates as soon as possible to mitigate the risk of exploitation.
Conclusion
It is crucial to update to the latest versions of the affected packages to protect your system from potential denial of service attacks. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for aspnetcore-runtime-6.0 →
FAQ
These vulnerabilities can lead to denial of service conditions, causing service disruption or unavailability.
Yes, all versions of dotnet6.0 are affected. It is recommended to update to the latest versions to address the vulnerabilities.
Yes, these vulnerabilities can be exploited remotely by an attacker.
There are no known public exploits for these vulnerabilities at the time of this advisory.
You can find more information about these vulnerabilities, including the impact, CVSS score, and acknowledgments, on the respective CVE pages: CVE-2024-21386 and CVE-2024-21404.
Related vulnerabilities
Recent vulnerabilities recorded for aspnetcore-runtime-6.0.
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