GHSA-vh55-786g-wjwj BIT-dotnet-2022-34716 BIT-dotnet-sdk-2022-34716 BIT-powershell-2022-34716 CVE-2022-34716
.NET Information Disclosure Vulnerability
Medium
NuGet
- Severity
- 5.9 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 2.50%
- Chance of exploitation in the next 30 days. Higher than 84.69% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- —
- Not classified
- Fix
- Available
- 13 packages have a fixed version
Description
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 |
| Microsoft.AspNetCore.App.Runtime.win-arm | >=6.0.0, 6.0.7 | 6.0.8 |
| Microsoft.AspNetCore.App.Runtime.osx-arm64 | >=6.0.0, 6.0.7 | 6.0.8 |
| Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | >=6.0.0, 6.0.7 | 6.0.8 |
| Microsoft.AspNetCore.App.Runtime.linux-musl-arm | >=6.0.0, 6.0.7 | 6.0.8 |
Patches
- If you're using .NET 6.0, you should download and install Runtime 6.0.8 or SDK 6.0.108 (for Visual Studio 2022 v17.1) from https://dotnet.microsoft.com/download/dotnet-core/6.0.
- If you're using .NET Core 3.1, you should download and install Runtime 3.1.28 (for Visual Studio 2019 v16.9) from https://dotnet.microsoft.com/download/dotnet-core/3.1.
Other
Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/232 An Issue for this can be found at https://github.com/dotnet/aspnetcore/issues/43166 MSRC details for this can be found at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-34716
Affected versions
NuGet
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
Microsoft.AspNetCore.App.Runtime.linux-arm NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.linux-arm --version 3.1.28
Microsoft.AspNetCore.App.Runtime.linux-arm64 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.linux-arm64 --version 3.1.28
Microsoft.AspNetCore.App.Runtime.linux-musl-arm NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.linux-musl-arm --version 3.1.28
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 --version 3.1.28
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.linux-musl-x64 --version 3.1.28
Microsoft.AspNetCore.App.Runtime.linux-x64 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.linux-x64 --version 3.1.28
Microsoft.AspNetCore.App.Runtime.osx-arm64 NuGet → 6.0.8
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.osx-arm64 --version 6.0.8
Microsoft.AspNetCore.App.Runtime.osx-x64 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.osx-x64 --version 3.1.28
Microsoft.AspNetCore.App.Runtime.win-arm NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.win-arm --version 3.1.28
Microsoft.AspNetCore.App.Runtime.win-arm64 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.win-arm64 --version 3.1.28
Microsoft.AspNetCore.App.Runtime.win-x64 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.win-x64 --version 3.1.28
Microsoft.AspNetCore.App.Runtime.win-x86 NuGet → 3.1.28
- dotnet
dotnet add package Microsoft.AspNetCore.App.Runtime.win-x86 --version 3.1.28
System.Security.Cryptography.Xml NuGet → 4.7.1
- dotnet
dotnet add package System.Security.Cryptography.Xml --version 4.7.1
Severity breakdown
CVSS 3.1 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
References
Advisories
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-vmch-3w2x-vhgq .NET Denial of Service Vulnerability | High Known exploited | Also affects Microsoft.AspNetCore.App.Runtime.win-arm64 |
| GHSA-7hqp-7c5m-4vq6 Microsoft Security Advisory CVE-2026-96960 - .NET and Visual Studio Denial of Service Vulnerability | High | Also affects System.Security.Cryptography.Xml |
| GHSA-c399-9853-6jmj Microsoft Security Advisory CVE-2026-96959 - .NET and Visual Studio Denial of Service Vulnerability | High | Also affects System.Security.Cryptography.Xml |
| GHSA-r955-8q5j-3h83 Microsoft Security Advisory CVE-2026-96958 - .NET and Visual Studio Denial of Service Vulnerability | High | Also affects System.Security.Cryptography.Xml |
| GHSA-f4g7-52wc-p8x7 Microsoft Security Advisory CVE-2026-96236 - ASP.NET Core Denial of Service Vulnerability | High | Also affects Microsoft.AspNetCore.App.Runtime.linux-arm |
| GHSA-vrv5-2jg9-4mmr Microsoft Security Advisory CVE-2026-96222 - .NET Spoofing Vulnerability | High | Also affects System.Security.Cryptography.Xml |
| GHSA-rv87-ccxw-8ggf Microsoft Security Advisory CVE-2026-88092 - ASP.NET Core Security Feature Bypass Vulnerability | Critical | Also affects Microsoft.AspNetCore.App.Runtime.linux-arm |
| GHSA-57xr-hfxx-jw5x Microsoft Security Advisory CVE-2026-70196 - ASP.NET Core Denial of Service Vulnerability | Medium | Also affects Microsoft.AspNetCore.App.Runtime.linux-arm |
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