# RHSA-2021:3142: Security update for 8 packages

RHSA-2021:3142, released August 11, 2021, fixes 3 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2021-3142
- Platform: Linux
- Released: Aug 11, 2021
- Priority: High (Closes CVE-2021-26423, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2021:3142

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [aspnetcore-runtime-3.1](https://patchblox.com/security/data/product/linux/aspnetcore-runtime-3.1.md) | RHEL 8 | 0:3.1.18-1.el8_4 |
| [aspnetcore-targeting-pack-3.1](https://patchblox.com/security/data/product/linux/aspnetcore-targeting-pack-3.1.md) | RHEL 8 | 0:3.1.18-1.el8_4 |
| [dotnet-apphost-pack-3.1](https://patchblox.com/security/data/product/linux/dotnet-apphost-pack-3.1.md) | RHEL 8 | 0:3.1.18-1.el8_4 |
| [dotnet-hostfxr-3.1](https://patchblox.com/security/data/product/linux/dotnet-hostfxr-3.1.md) | RHEL 8 | 0:3.1.18-1.el8_4 |
| [dotnet-runtime-3.1](https://patchblox.com/security/data/product/linux/dotnet-runtime-3.1.md) | RHEL 8 | 0:3.1.18-1.el8_4 |
| [dotnet-sdk-3.1](https://patchblox.com/security/data/product/linux/dotnet-sdk-3.1.md) | RHEL 8 | 0:3.1.118-1.el8_4 |
| [dotnet-targeting-pack-3.1](https://patchblox.com/security/data/product/linux/dotnet-targeting-pack-3.1.md) | RHEL 8 | 0:3.1.18-1.el8_4 |
| [dotnet-templates-3.1](https://patchblox.com/security/data/product/linux/dotnet-templates-3.1.md) | RHEL 8 | 0:3.1.118-1.el8_4 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-26423](https://patchblox.com/security/data/cve/CVE-2021-26423.md) | High | .NET Core and Visual Studio Denial of Service Vulnerability | 7.5 | 0.0390 |  |
| [CVE-2021-34485](https://patchblox.com/security/data/cve/CVE-2021-34485.md) | Routine | .NET Core and Visual Studio Information Disclosure Vulnerability | 5.5 | 0.0207 |  |
| [CVE-2021-34532](https://patchblox.com/security/data/cve/CVE-2021-34532.md) | Routine | ASP.NET Core and Visual Studio Information Disclosure Vulnerability | 5.5 | 0.0122 |  |

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Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo