High severity7.5NVD Advisory· Published Jan 10, 2023· Updated Jun 17, 2026
CVE-2023-21538
CVE-2023-21538
Description
.NET Denial of Service Vulnerability
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Microsoft.NETCore.App.Runtime.linux-armNuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.linux-arm64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.linux-musl-armNuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.linux-musl-arm64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.linux-musl-x64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.linux-x64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.osx-arm64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.osx-x64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.win-armNuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.win-arm64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.win-x64NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Microsoft.NETCore.App.Runtime.win-x86NuGet | >= 6.0.0, < 6.0.13 | 6.0.13 |
Affected products
30- Microsoft/.NET 6.0v5Range: 6.0.0
cpe:2.3:a:microsoft:powershell:7.2:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:powershell:7.2:*:*:*:*:*:*:*
- (no CPE)range: 7.2.0
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- ghsa-coords24 versionspkg:nuget/microsoft.netcore.app.runtime.linux-armpkg:nuget/microsoft.netcore.app.runtime.linux-arm64pkg:nuget/microsoft.netcore.app.runtime.linux-musl-armpkg:nuget/microsoft.netcore.app.runtime.linux-musl-arm64pkg:nuget/microsoft.netcore.app.runtime.linux-musl-x64pkg:nuget/microsoft.netcore.app.runtime.linux-x64pkg:nuget/microsoft.netcore.app.runtime.osx-arm64pkg:nuget/microsoft.netcore.app.runtime.osx-x64pkg:nuget/microsoft.netcore.app.runtime.win-armpkg:nuget/microsoft.netcore.app.runtime.win-arm64pkg:nuget/microsoft.netcore.app.runtime.win-x64pkg:nuget/microsoft.netcore.app.runtime.win-x86pkg:bitnami/powershellpkg:bitnami/dotnet-sdkpkg:rpm/almalinux/aspnetcore-runtime-6.0pkg:rpm/almalinux/aspnetcore-targeting-pack-6.0pkg:rpm/almalinux/dotnet-apphost-pack-6.0pkg:rpm/almalinux/dotnet-hostfxr-6.0pkg:rpm/almalinux/dotnet-runtime-6.0pkg:rpm/almalinux/dotnet-sdk-6.0pkg:rpm/almalinux/dotnet-sdk-6.0-source-built-artifactspkg:rpm/almalinux/dotnet-targeting-pack-6.0pkg:rpm/almalinux/dotnet-templates-6.0pkg:bitnami/dotnet
>= 6.0.0, < 6.0.13+ 23 more
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 6.0.0, < 6.0.13
- (no CPE)range: >= 7.2.0, <= 7.2.0
- (no CPE)range: >= 6.0.0, < 6.0.1
- (no CPE)range: < 6.0.13-1.el9_1
- (no CPE)range: < 6.0.13-1.el9_1
- (no CPE)range: < 6.0.13-1.el9_1
- (no CPE)range: < 6.0.13-1.el9_1
- (no CPE)range: < 6.0.13-1.el9_1
- (no CPE)range: < 6.0.113-1.el9_1
- (no CPE)range: < 6.0.113-1.el9_1
- (no CPE)range: < 6.0.13-1.el9_1
- (no CPE)range: < 6.0.113-1.el9_1
- (no CPE)range: >= 6.0.0, < 6.0.1
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-8f7f-vqg5-jrv9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-21538ghsaADVISORY
- github.com/dotnet/runtime/security/advisories/GHSA-8f7f-vqg5-jrv9ghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/GV5QDWYJ4C26JB7RTI55Z4O76WSH4FMVghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/ZI27LYW5C4Z4644WYIQWOXBZL7WIP2X6ghsaWEB
- msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21538nvdWEB
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21538ghsaWEB
News mentions
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