CVE-2022-21986 .NET Denial of Service Vulnerability
High 7.5
Published
Updated
Check this codebase for CVE-2022-21986 and fix it if it is affected.
What it is: CVE-2022-21986 is a high-severity vulnerability in Fedoraproject Fedora, published on 9 Feb 2022.
Exploitation: There is no known exploitation of CVE-2022-21986 in the wild and no public exploit code.
Affected packages and fixed versions:
- Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet): affected from 5.0.0; fixed in 5.0.14
- Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet): affected from 5.0.0; fixed in 5.0.14
- Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet): affected from 6.0.0; fixed in 6.0.2
- Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet): affected from 6.0.0; fixed in 6.0.2
- dotnet (Bitnami): affected from 5.0.0; fixed in 5.0.14, 6.0.2
- dotnet-sdk (Bitnami): affected from 5.0.0; fixed in 5.0.14, 6.0.2
- Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet): affected from 5.0.0; fixed in 5.0.14
- Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet): affected from 5.0.0; fixed in 5.0.14
- Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet): affected from 6.0.0; fixed in 6.0.2
- Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet): affected from 6.0.0; fixed in 6.0.2
- Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet): affected from 5.0.0; fixed in 5.0.14
- Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet): affected from 5.0.0; fixed in 5.0.14
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2022-21986/ (Markdown: https://insights.sbomify.com/CVE-2022-21986/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2022-21986?
CVE-2022-21986 is a high-severity vulnerability in Fedoraproject Fedora, published on 9 Feb 2022.
Official description
.NET Denial of Service Vulnerability
Which versions are affected by CVE-2022-21986?
40 open source packages ship an affected version, including Microsoft.AspNetCore.App.Runtime.linux-arm, dotnet and dotnet-sdk. It affects 4 products.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.AspNetCore.App.Runtime.linux-arm NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-arm NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-arm NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-arm NuGet | From 6.0.0 | 6.0.2 |
dotnet Bitnami | From 5.0.0 | 5.0.14, 6.0.2 |
dotnet-sdk Bitnami | From 5.0.0 | 5.0.14, 6.0.2 |
34 more packages
Microsoft.AspNetCore.App.Runtime.linux-arm64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-arm64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-arm64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-arm64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-x64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-x64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.linux-x64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.linux-x64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.osx-arm64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.osx-arm64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.osx-x64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.osx-x64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.osx-x64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.osx-x64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.win-arm NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.win-arm NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.win-arm NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.win-arm NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.win-arm64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.win-arm64 NuGet | From 5.0.0 | 5.0.14 |
Microsoft.AspNetCore.App.Runtime.win-arm64 NuGet | From 6.0.0 | 6.0.2 |
Microsoft.AspNetCore.App.Runtime.win-arm64 NuGet | From 6.0.0 | 6.0.2 |
Products include Fedoraproject Fedora, Microsoft .Net, Microsoft Visual Studio 2019, Microsoft Visual Studio 2022.
How do I fix CVE-2022-21986?
Upgrade Microsoft.AspNetCore.App.Runtime.linux-arm to a fixed version for your release line: 5.0.14 or 6.0.2.
Is CVE-2022-21986 being exploited?
There is no known exploitation of CVE-2022-21986 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as BIT-dotnet-2022-21986, BIT-dotnet-sdk-2022-21986, GHSA-x459-p2rx-f8ff, RHSA-2022:0495, RHSA-2022:0496, RHSA-2022:0499 and 3 more.