CVE-2022-21986
HIGH
Published 2022-02-09T16:36:32
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CVSS Score
V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Base Score Metrics
Exploitability: N/A
Impact: N/A
EPSS Score
v2023.03.01
0.001
probability
of exploitation in the wild
There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.
Updated: 2025-01-25
Exploit Probability
Percentile: 0.384
Higher than 38.4% of all CVEs
Attack Vector Metrics
Impact Metrics
Description
No description available
Available Exploits
No exploits available for this CVE.
Related News
No news articles found for this CVE.
Affected Products
Affected Versions:
Affected Versions:
Affected Versions:
Affected Versions:
GitHub Security Advisories
Community-driven vulnerability intelligence from GitHub
Advisory 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
Affected Packages
NuGet
Microsoft.AspNetCore.App.Runtime.win-x64
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.linux-x64
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.win-x86
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.osx-x64
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.linux-musl-x64
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.linux-arm64
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.linux-arm
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.win-arm64
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.win-arm
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.linux-musl-arm
ECOSYSTEM:
≥5.0.0
<5.0.14
NuGet
Microsoft.AspNetCore.App.Runtime.linux-arm
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.linux-arm64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.linux-musl-arm
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.linux-musl-x64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.linux-x64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.osx-arm64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.osx-x64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.win-arm
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.win-arm64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.win-x64
ECOSYSTEM:
≥6.0.0
<6.0.2
NuGet
Microsoft.AspNetCore.App.Runtime.win-x86
ECOSYSTEM:
≥6.0.0
<6.0.2
CVSS Scoring
CVSS Score
7.5
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
Advisory provided by GitHub Security Advisory Database. Published: October 21, 2022, Modified: October 21, 2022
Published: 2022-02-09T16:36:32
Last Modified: 2025-01-02T18:28:16.455Z
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