Microsoft Security Advisory CVE-2024-43483 | .NET Denial of Service Vulnerability
Date: 2024-10
Affected: nuget/Microsoft.Extensions.Caching.Memory, nuget/Microsoft.Extensions.Caching.Memory, nuget/Microsoft.Extensions.Caching.Memory
Attack vector: dos
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2024-43483
CWE: CWE-407
CVSS: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

# Microsoft Security Advisory CVE-2024-43483 | .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in System.Security.Cryptography.Cose, System.IO.Packaging, Microsoft.Extensions.Caching.Memory. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. System.Security.Cryptography.Cose, System.IO.Packaging, Microsoft.Extensions.Caching.Memory may be exposed to a hostile input which may lead them to be susceptible to hash flooding attacks resulting in denial of service. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/327 ## <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-software"></a>Affected software * Any .NET 8.0 application running on .NET 8.0.8 or earlier. * Any .NET 6.0 aplication running on .NET 6.0.33 or earlier. * Any application consuming one of the [vulnerable packages](affected-packages). ## <a name="affected-packages"></a>Affected Packages * Any .NET 6.0, 8.0, or 9.0 application. * Any application consuming one of the vulnerable packages. ### <a name=".NET 9 "></a>.NET 9 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- [System.Security.Cryptog


Mitigations:

Architectural layers (MAESTRO):