ghsa-x459-p2rx-f8ff
Vulnerability from github
Published
2022-10-21 20:29
Modified
2022-10-21 20:29
Severity ?
Summary
.NET Denial of Service Vulnerability
Details
Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0 and .NET 5.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A Denial of Service vulnerability exists in .NET 6.0 and .NET 5.0 when the Kestrel web server processes certain HTTP/2 and HTTP/3 requests.
Affected Software
- Any .NET 6.0 application running on .NET 6.0.1 or lower.
- Any .NET 5.0 application running on .NET 5.0.13 or lower.
Patches
To fix the issue, please install the latest version of .NET 6.0 or .NET 5.0. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.
-
If you're using .NET Core 6.0, you should download and install Runtime 6.0.2 or SDK 6.0.102 (for Visual Studio 2022 v17.1) from https://dotnet.microsoft.com/download/dotnet-core/6.0.
-
If you're using .NET 5.0, you should download and install Runtime 5.0.14 or SDK 5.0.114 (for Visual Studio 2019 v16.8) or SDK 5.0.405 (for Visual Studio 2011 v16.11) from https://dotnet.microsoft.com/download/dotnet-core/5.0.
.NET 6.0 and .NET 5.0 updates are also available from Microsoft Update. To access this either type "Check for updates" in your Windows search, or open Settings, choose Update & Security and then click Check for Updates.
Other Details
- Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/207
- An Issue for this can be found at https://github.com/dotnet/aspnetcore/issues/40072
- MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-21986
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],
"aliases": [
"CVE-2022-21986"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": true,
"github_reviewed_at": "2022-10-21T20:29:04Z",
"nvd_published_at": "2022-02-09T17:15:00Z",
"severity": "HIGH"
},
"details": "Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0 and .NET 5.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nA Denial of Service vulnerability exists in .NET 6.0 and .NET 5.0 when the Kestrel web server processes certain HTTP/2 and HTTP/3 requests.\n\n### Affected Software\n\n* Any .NET 6.0 application running on .NET 6.0.1 or lower.\n* Any .NET 5.0 application running on .NET 5.0.13 or lower.\n\n### Patches\nTo fix the issue, please install the latest version of .NET 6.0 or .NET 5.0. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.\n\n* If you\u0027re using .NET Core 6.0, you should download and install Runtime 6.0.2 or SDK 6.0.102 (for Visual Studio 2022 v17.1) from https://dotnet.microsoft.com/download/dotnet-core/6.0.\n\n* If you\u0027re using .NET 5.0, you should download and install Runtime 5.0.14 or SDK 5.0.114 (for Visual Studio 2019 v16.8) or SDK 5.0.405 (for Visual Studio 2011 v16.11) from https://dotnet.microsoft.com/download/dotnet-core/5.0.\n\n\n.NET 6.0 and .NET 5.0 updates are also available from Microsoft Update. To access this either type \"Check for updates\" in your Windows search, or open Settings, choose Update \u0026 Security and then click Check for Updates.\n\n#### Other Details\n\n- Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/207\n- An Issue for this can be found at https://github.com/dotnet/aspnetcore/issues/40072\n- MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-21986",
"id": "GHSA-x459-p2rx-f8ff",
"modified": "2022-10-21T20:29:04Z",
"published": "2022-10-21T20:29:04Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/dotnet/aspnetcore/security/advisories/GHSA-x459-p2rx-f8ff"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21986"
},
{
"type": "WEB",
"url": "https://github.com/dotnet/announcements/issues/207"
},
{
"type": "PACKAGE",
"url": "https://github.com/dotnet/aspnetcore"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4HMQOHV7G5TF6OMBN6DNTDOKQQU7KHMM"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CCTBSBE3PNIMXG6ALX2CQG4ZEH7W3YAT"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21986"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21986"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": ".NET Denial of Service Vulnerability"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.