CVE-2021-31957
ASP.NET Core Denial of Service Vulnerability
CVE-2021-31957 is fixed in 19 products on 1 platform, first by RHSA-2021:2352, released June 9, 2021. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0514
92nd percentile
ELSA-2021-2352: .NET Core 3.1 security and bugfix update (IMPORTANT)
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| aspnetcore-runtime-3.1 · RHEL 8 | 0:3.1.16-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| aspnetcore-runtime-3.1 · ol 8 | 0:3.1.16-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| aspnetcore-runtime-5.0 · RHEL 8 | 0:5.0.7-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| aspnetcore-runtime-5.0 · ol 8 | 0:5.0.7-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| aspnetcore-targeting-pack-3.1 · RHEL 8 | 0:3.1.16-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| aspnetcore-targeting-pack-3.1 · ol 8 | 0:3.1.16-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| aspnetcore-targeting-pack-5.0 · RHEL 8 | 0:5.0.7-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| aspnetcore-targeting-pack-5.0 · ol 8 | 0:5.0.7-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet · RHEL 8 | 0:5.0.204-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet · ol 8 | 0:5.0.204-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet-apphost-pack-3.1 · RHEL 8 | 0:3.1.16-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| dotnet-apphost-pack-3.1 · ol 8 | 0:3.1.16-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| dotnet-apphost-pack-5.0 · RHEL 8 | 0:5.0.7-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet-apphost-pack-5.0 · ol 8 | 0:5.0.7-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet-host · RHEL 8 | 0:5.0.7-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet-host · ol 8 | 0:5.0.7-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet-hostfxr-3.1 · RHEL 8 | 0:3.1.16-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| dotnet-hostfxr-3.1 · ol 8 | 0:3.1.16-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| dotnet-hostfxr-5.0 · RHEL 8 | 0:5.0.7-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet-hostfxr-5.0 · ol 8 | 0:5.0.7-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet-runtime-3.1 · RHEL 8 | 0:3.1.16-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| dotnet-runtime-3.1 · ol 8 | 0:3.1.16-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| dotnet-runtime-5.0 · RHEL 8 | 0:5.0.7-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet-runtime-5.0 · ol 8 | 0:5.0.7-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet-sdk-3.1 · RHEL 8 | 0:3.1.116-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| dotnet-sdk-3.1 · ol 8 | 0:3.1.116-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| dotnet-sdk-5.0 · RHEL 8 | 0:5.0.204-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet-sdk-5.0 · ol 8 | 0:5.0.204-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet-targeting-pack-3.1 · RHEL 8 | 0:3.1.16-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| dotnet-targeting-pack-3.1 · ol 8 | 0:3.1.16-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| dotnet-targeting-pack-5.0 · RHEL 8 | 0:5.0.7-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet-targeting-pack-5.0 · ol 8 | 0:5.0.7-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| dotnet-templates-3.1 · RHEL 8 | 0:3.1.116-1.el8_4 | RHSA-2021:2352 | Jun 9, 2021 |
| dotnet-templates-3.1 · ol 8 | 0:3.1.116-1.0.1.el8_4 | ELSA-2021-2352 | Jun 11, 2021 |
| dotnet-templates-5.0 · RHEL 8 | 0:5.0.204-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| dotnet-templates-5.0 · ol 8 | 0:5.0.204-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
| netstandard-targeting-pack-2.1 · RHEL 8 | 0:5.0.204-1.el8_4 | RHSA-2021:2353 | Jun 9, 2021 |
| netstandard-targeting-pack-2.1 · ol 8 | 0:5.0.204-1.0.1.el8_4 | ELSA-2021-2353 | Jun 10, 2021 |
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