USN-6438-2: .Net regressions
25 October 2023
An incomplete fix was discovered in .Net.
Releases
Packages
Details
USN-6438-1 fixed vulnerabilities in .Net. It was discovered that the fix
for CVE-2023-36799 was incomplete. This update fixes the problem.
Original advisory details:
Kevin Jones discovered that .NET did not properly process certain
X.509 certificates. An attacker could possibly use this issue to
cause a denial of service. (CVE-2023-36799)
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. (CVE-2023-44487)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 23.10
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aspnetcore-runtime-6.0
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6.0.124-0ubuntu1~23.10.1
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aspnetcore-runtime-7.0
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7.0.113-0ubuntu1~23.10.1
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dotnet-host
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6.0.124-0ubuntu1~23.10.1
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dotnet-host-7.0
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7.0.113-0ubuntu1~23.10.1
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dotnet-hostfxr-6.0
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6.0.124-0ubuntu1~23.10.1
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dotnet-hostfxr-7.0
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7.0.113-0ubuntu1~23.10.1
-
dotnet-runtime-6.0
-
6.0.124-0ubuntu1~23.10.1
-
dotnet-runtime-7.0
-
7.0.113-0ubuntu1~23.10.1
-
dotnet-sdk-6.0
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6.0.124-0ubuntu1~23.10.1
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dotnet-sdk-7.0
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7.0.113-0ubuntu1~23.10.1
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dotnet6
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6.0.124-0ubuntu1~23.10.1
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dotnet7
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7.0.113-0ubuntu1~23.10.1
In general, a standard system update will make all the necessary changes.