Vulnerability-Lookup

GHSA-3GP9-H8HW-PXPW

Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2022-11-01 21:40

Summary

Denial of service in .NET core

Details

.NET Core and Visual Studio Denial of Service Vulnerability due to a vulnerability which exists when creating HTTPS web request during X509 certificate chain building.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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  "aliases": [
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  "database_specific": {
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    "github_reviewed_at": "2022-11-01T21:40:37Z",
    "nvd_published_at": "2021-02-25T23:15:00Z",
    "severity": "MODERATE"
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  "details": ".NET Core and Visual Studio Denial of Service Vulnerability due to a vulnerability which exists when creating HTTPS web request during X509 certificate chain building.",
  "id": "GHSA-3gp9-h8hw-pxpw",
  "modified": "2022-11-01T21:40:37Z",
  "published": "2022-05-24T17:43:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1721"
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      "type": "WEB",
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    },
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/runtime/issues/48067"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of service in .NET core"
}

CVE-2021-1721 (GCVE-0-2021-1721)

Vulnerability from cvelistv5 – Published: 2021-02-25 23:01 – Updated: 2026-05-28 19:30

Title

.NET Core and Visual Studio Denial of Service Vulnerability

Summary

.NET Core and Visual Studio Denial of Service Vulnerability

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-01-03 18:38 UTC

CWE

Denial of Service
CWE-noinfo Not enough information

Assigner

microsoft CNA under the mitre root

CNA scorecard B 82/100 over 3954 records in the last 180 days details

References

1 reference

URL	Tags
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_MISC

Impacted products

9 products

Vendor	Product	Version
Microsoft	Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)	Affected: 16.0.0 , < publication (custom) cpe:2.3:a:microsoft:visual_studio_2019::::::::
Microsoft	PowerShell Core 7.1	Affected: 7.1.0 , < publication (custom) cpe:2.3:a:microsoft:powershell_core::::::::
Microsoft	PowerShell Core 7.0	Affected: 7.0.0 , < publication (custom) cpe:2.3:a:microsoft:powershell_core::::::::
Microsoft	.NET Core 2.1	Affected: 2.1 , < publication (custom) cpe:2.3:a:microsoft:.net_core::::::::
Microsoft	.NET Core 3.1	Affected: 3.1 , < publication (custom) cpe:2.3:a:microsoft:.net_core::::::::
Microsoft	.NET 5.0	Affected: 5.0.0 , < publication (custom) cpe:2.3:a:microsoft:.net::::::::
Microsoft	Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)	Affected: 16.0 , < publication (custom) cpe:2.3:a:microsoft:visual_studio_2019::::::::
Microsoft	Microsoft Visual Studio 2019 version 16.8	Affected: 16.0 , < publication (custom) cpe:2.3:a:microsoft:visual_studio_2019::::::::
Microsoft	Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)	Affected: 15.9.0 , < publication (custom) cpe:2.3:a:microsoft:visual_studio_2017::::::::

Date Public

2021-02-09 08:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T16:18:11.551Z",
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          "product": ".NET 5.0",
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          "product": "Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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