usn-6427-1
Vulnerability from osv_ubuntu
Published
2023-10-10 18:18
Modified
2026-04-27 14:11
Summary
dotnet6, dotnet7 vulnerability
Details
It was discovered that the .NET Kestrel web server did not properly handle HTTP/2 requests. A remote attacker could possibly use this issue to cause a denial of service.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2023-44487",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "aspnetcore-runtime-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "aspnetcore-targeting-pack-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-apphost-pack-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-host",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-hostfxr-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-runtime-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-sdk-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-sdk-6.0-source-built-artifacts",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-targeting-pack-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-templates-6.0",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet6",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
},
{
"binary_name": "netstandard-targeting-pack-2.1",
"binary_version": "6.0.123-0ubuntu1~22.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "dotnet6",
"purl": "pkg:deb/ubuntu/dotnet6@6.0.123-0ubuntu1~22.04.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0.123-0ubuntu1~22.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6.0.108-0ubuntu1~22.04.1",
"6.0.109-0ubuntu1~22.04.1",
"6.0.110-0ubuntu1~22.04.1",
"6.0.111-0ubuntu1~22.04.1",
"6.0.113-0ubuntu1~22.04.1",
"6.0.116-0ubuntu1~22.04.1",
"6.0.118-0ubuntu1~22.04.1",
"6.0.119-0ubuntu1~22.04.1",
"6.0.120-0ubuntu1~22.04.1",
"6.0.121-0ubuntu1~22.04.1",
"6.0.122-0ubuntu1~22.04.1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2023-44487",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "aspnetcore-runtime-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "aspnetcore-targeting-pack-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-apphost-pack-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-host-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-hostfxr-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-runtime-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-sdk-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-sdk-7.0-source-built-artifacts",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-targeting-pack-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet-templates-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "dotnet7",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
},
{
"binary_name": "netstandard-targeting-pack-2.1-7.0",
"binary_version": "7.0.112-0ubuntu1~22.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "dotnet7",
"purl": "pkg:deb/ubuntu/dotnet7@7.0.112-0ubuntu1~22.04.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.112-0ubuntu1~22.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.0.105-0ubuntu1~22.04.1",
"7.0.107-0ubuntu1~22.04.1",
"7.0.108-0ubuntu1~22.04.1",
"7.0.109-0ubuntu1~22.04.1",
"7.0.110-0ubuntu1~22.04.1",
"7.0.111-0ubuntu1~22.04.1"
]
}
],
"aliases": [],
"details": "It was discovered that the .NET Kestrel web server did not properly handle\nHTTP/2 requests. A remote attacker could possibly use this issue to cause a\ndenial of service.\n",
"id": "USN-6427-1",
"modified": "2026-04-27T14:11:31Z",
"published": "2023-10-10T18:18:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6427-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-44487"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "dotnet6, dotnet7 vulnerability",
"upstream": [
"UBUNTU-CVE-2023-44487"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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