CVE-2022-34716

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET Core 3.1 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

An information disclosure vulnerability exists in .NET Core 3.1 and .NET 6.0 that could lead to unauthorized access of privileged information.

<a name="affected-software"></a>Affected software

• Any .NET 6.0 application running on .NET 6.0.7 or earlier.
• Any .NET Core 3.1 applicaiton running on .NET Core 3.1.27 or earlier.

If your application uses the following package versions, ensure you update to the latest version of .NET.

<a name=".NET Core 3.1"></a>.NET Core 3.1

Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- System.Security.Cryptography.Xml| <=4.7.0| 4.7.1 Microsoft.AspNetCore.App.Runtime.win-x64| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.linux-x64| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.win-x86| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.osx-x64| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.linux-musl-x64| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.linux-arm64| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.linux-arm| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.win-arm64| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.win-arm| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.linux-musl-arm64| >=3.1.0, 3.1.27| 3.1.28 Microsoft.AspNetCore.App.Runtime.linux-musl-arm| >=3.1.0, 3.1.27| 3.1.28

<a name=".NET 6"></a>.NET 6

Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- System.Security.Cryptography.Xml| >=5.0.0, 6.0.0| 6.0.1 Microsoft.AspNetCore.App.Runtime.win-x64| >=6.0.0, 6.0.7| 6.0.8 Microsoft.AspNetCore.App.Runtime.linux-x64| >=6.0.0, 6.0.7| 6.0.8 Microsoft.AspNetCore.App.Runtime.win-x86| >=6.0.0, 6.0.7| 6.0.8 Microsoft.AspNetCore.App.Runtime.osx-x64| >=6.0.0, 6.0.7| 6.0.8 Microsoft.AspNetCore.App.Runtime.linux-musl-x64| >=6.0.0, 6.0.7| 6.0.8 Microsoft.AspNetCore.App.Runtime.linux-arm64| >=6.0.0, 6.0.7| 6.0.8 Microsoft.AspNetCore.App.Runtime.linux-arm| >=6.0.0, 6.0.7| 6.0.8 Microsoft.AspNetCore.App.Runtime.win-arm64| >=6.0.0, 6.0.7| 6.0.8…

.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 3.1.422 and .NET Runtime 3.1.28.

Security Fix(es):

• dotnet: External Entity Injection during XML signature verification (CVE-2022-34716)

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.

.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 6.0.108 and .NET Runtime 6.0.8.

Security Fix(es):

• dotnet: External Entity Injection during XML signature verification (CVE-2022-34716)

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.

.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 6.0.108 and .NET Runtime 6.0.8. Security Fix(es):

• dotnet: External Entity Injection during XML signature verification (CVE-2022-34716) 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.

.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 3.1.422 and .NET Runtime 3.1.28. Security Fix(es):

• dotnet: External Entity Injection during XML signature verification (CVE-2022-34716) 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.

.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 6.0.108 and .NET Runtime 6.0.8. Security Fix(es):

• dotnet: External Entity Injection during XML signature verification (CVE-2022-34716) 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.

.NET Spoofing Vulnerability

.NET Spoofing Vulnerability

.NET Spoofing Vulnerability