Microsoft Security Advisory CVE-2024-43484 | .NET Denial of Service Vulnerability
Date: 2024-10
Affected: nuget/System.IO.Packaging, nuget/System.IO.Packaging, nuget/System.IO.Packaging
Attack vector: dos
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2024-43484
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-2024-43484 | .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.IO.Packaging. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. The System.IO.Packaging library may allow untrusted inputs to influence algorithmically complex operations, leading to denial of service. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/328 ## <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-packages"></a>Affected Packages The vulnerability affects any Microsoft .NET Core project if it uses any of affected packages versions listed below ### <a name=".NET 9"></a>.NET 9 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- [System.IO.Packaging](https://www.nuget.org/packages/System.IO.Packaging) | >= 9.0.0-preview.1.24080.9, <= 9.0.0-rc.1.24431.7 | 9.0.0-rc.2.24473.5 ### <a name=".NET 8"></a>.NET 8 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- [System.IO.Packaging](https://www.nuget.org/packages/System.IO.Packaging) | >= 8.0.0-preview.1.231


Mitigations:

Architectural layers (MAESTRO):