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UbuntuUSN-6427-2HistoryOct 19, 2023 - 12:00 a.m.
.NET vulnerability
2023-10-1900:00:00
ubuntu.com
35
ubuntu 23.10
.net 8
.net kestrel
http/2
denial of service
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.7 High
AI Score
Confidence
High
0.732 High
EPSS
Percentile
98.1%
Releases
- Ubuntu 23.10
Packages
- dotnet8 - .NET CLI tools and runtime
Details
USN-6427-1 fixed a vulnerability in .NET. This update
provides the corresponding update for .NET 8.
Original advisory 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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 23.10 | noarch | aspnetcore-runtime-8.0 | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | aspnetcore-targeting-pack-8.0 | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-apphost-pack-8.0 | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-apphost-pack-8.0-dbgsym | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-host-8.0 | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-host-8.0-dbgsym | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-hostfxr-8.0 | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-hostfxr-8.0-dbgsym | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-runtime-8.0 | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
| Ubuntu | 23.10 | noarch | dotnet-runtime-8.0-dbgsym | < 8.0.0~rc2-0ubuntu1 | UNKNOWN |
References
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7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.7 High
AI Score
Confidence
High
0.732 High
EPSS
Percentile
98.1%
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