# CVE-2019-1301: .NET Core Denial of Service Vulnerability

CVE-2019-1301 is fixed in 6 products on 1 platform, first by RHSA-2019:2731, released September 12, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-1301
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.0533
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Sep 12, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1301

## Description

<p>A denial of service vulnerability exists when .NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Core web application. The vulnerability can be exploited remotely, without authentication.</p> <p>A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Core application.</p> <p>The update addresses the vulnerability by correcting how the .NET Core web application handles web requests.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dotnet RHEL 8 | 0:2.1.509-1.el8_0 | [RHSA-2019:2731](https://patchblox.com/security/data/fix/linux/rhsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet ol 8 | 0:2.1.509-1.el8_0 | [ELSA-2019-2731](https://patchblox.com/security/data/fix/linux/elsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-host RHEL 8 | 0:2.1.13-1.el8_0 | [RHSA-2019:2731](https://patchblox.com/security/data/fix/linux/rhsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-host ol 8 | 0:2.1.13-1.el8_0 | [ELSA-2019-2731](https://patchblox.com/security/data/fix/linux/elsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-host-fxr-2.1 RHEL 8 | 0:2.1.13-1.el8_0 | [RHSA-2019:2731](https://patchblox.com/security/data/fix/linux/rhsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-host-fxr-2.1 ol 8 | 0:2.1.13-1.el8_0 | [ELSA-2019-2731](https://patchblox.com/security/data/fix/linux/elsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-runtime-2.1 RHEL 8 | 0:2.1.13-1.el8_0 | [RHSA-2019:2731](https://patchblox.com/security/data/fix/linux/rhsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-runtime-2.1 ol 8 | 0:2.1.13-1.el8_0 | [ELSA-2019-2731](https://patchblox.com/security/data/fix/linux/elsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-sdk-2.1 RHEL 8 | 0:2.1.509-1.el8_0 | [RHSA-2019:2731](https://patchblox.com/security/data/fix/linux/rhsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-sdk-2.1 ol 8 | 0:2.1.509-1.el8_0 | [ELSA-2019-2731](https://patchblox.com/security/data/fix/linux/elsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-sdk-2.1.5xx RHEL 8 | 0:2.1.509-1.el8_0 | [RHSA-2019:2731](https://patchblox.com/security/data/fix/linux/rhsa-2019-2731.md) | Sep 12, 2019 |
| Linux | dotnet-sdk-2.1.5xx ol 8 | 0:2.1.509-1.el8_0 | [ELSA-2019-2731](https://patchblox.com/security/data/fix/linux/elsa-2019-2731.md) | Sep 12, 2019 |

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