.NET Core and Visual Studio Denial of Service Vulnerability
CVE-2021-26423 is fixed in 19 products on 1 platform, first by RHSA-2021:3142, released August 11, 2021. It is not reported as exploited. Patch Radar priority: High.
.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 security vulnerabilities are now available. The updated versions are .NET SDK 5.0.206 and .NET Runtime 5.0.9. Security Fix(es): * dotnet: ASP.NET Core WebSocket frame processing DoS (CVE-2021-26423) * dotnet: Dump file created world-readable (CVE-2021-34485) * dotnet: ASP.NET Core JWT token logging (CVE-2021-34532) 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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| aspnetcore-runtime-3.1 · RHEL 8 | 0:3.1.18-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| aspnetcore-runtime-3.1 · ol 8 | 0:3.1.18-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| aspnetcore-runtime-5.0 · RHEL 8 | 0:5.0.9-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| aspnetcore-runtime-5.0 · ol 8 | 0:5.0.9-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| aspnetcore-targeting-pack-3.1 · RHEL 8 | 0:3.1.18-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| aspnetcore-targeting-pack-3.1 · ol 8 | 0:3.1.18-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| aspnetcore-targeting-pack-5.0 · RHEL 8 | 0:5.0.9-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| aspnetcore-targeting-pack-5.0 · ol 8 | 0:5.0.9-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet · RHEL 8 | 0:5.0.206-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet · ol 8 | 0:5.0.206-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet-apphost-pack-3.1 · RHEL 8 | 0:3.1.18-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| dotnet-apphost-pack-3.1 · ol 8 | 0:3.1.18-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| dotnet-apphost-pack-5.0 · RHEL 8 | 0:5.0.9-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet-apphost-pack-5.0 · ol 8 | 0:5.0.9-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet-host · RHEL 8 | 0:5.0.9-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet-host · ol 8 | 0:5.0.9-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet-hostfxr-3.1 · RHEL 8 | 0:3.1.18-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| dotnet-hostfxr-3.1 · ol 8 | 0:3.1.18-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| dotnet-hostfxr-5.0 · RHEL 8 | 0:5.0.9-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet-hostfxr-5.0 · ol 8 | 0:5.0.9-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet-runtime-3.1 · RHEL 8 | 0:3.1.18-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| dotnet-runtime-3.1 · ol 8 | 0:3.1.18-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| dotnet-runtime-5.0 · RHEL 8 | 0:5.0.9-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet-runtime-5.0 · ol 8 | 0:5.0.9-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet-sdk-3.1 · RHEL 8 | 0:3.1.118-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| dotnet-sdk-3.1 · ol 8 | 0:3.1.118-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| dotnet-sdk-5.0 · RHEL 8 | 0:5.0.206-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet-sdk-5.0 · ol 8 | 0:5.0.206-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet-targeting-pack-3.1 · RHEL 8 | 0:3.1.18-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| dotnet-targeting-pack-3.1 · ol 8 | 0:3.1.18-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| dotnet-targeting-pack-5.0 · RHEL 8 | 0:5.0.9-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet-targeting-pack-5.0 · ol 8 | 0:5.0.9-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| dotnet-templates-3.1 · RHEL 8 | 0:3.1.118-1.el8_4 | RHSA-2021:3142 | Aug 11, 2021 |
| dotnet-templates-3.1 · ol 8 | 0:3.1.118-1.0.1.el8_4 | ELSA-2021-3142 | Aug 13, 2021 |
| dotnet-templates-5.0 · RHEL 8 | 0:5.0.206-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| dotnet-templates-5.0 · ol 8 | 0:5.0.206-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
| netstandard-targeting-pack-2.1 · RHEL 8 | 0:5.0.206-1.el8_4 | RHSA-2021:3148 | Aug 12, 2021 |
| netstandard-targeting-pack-2.1 · ol 8 | 0:5.0.206-1.0.1.el8_4 | ELSA-2021-3148 | Aug 13, 2021 |
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