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From: Ian Constantin <ian.constantin@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <ccd36979-0496-4ecf-98f1-755784e38e64@canonical.com>
Subject: [USN-6693-1] .NET vulnerability

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==========================================================================
Ubuntu Security Notice USN-6693-1
March 12, 2024

dotnet7, dotnet8 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 22.04 LTS

Summary:

.NET could be made to crash if it processed specially crafted requests.

Software Description:
- dotnet7: .NET CLI tools and runtime
- dotnet8: .NET CLI tools and runtime

Details:

It was discovered that .NET did not properly handle certain specially
crafted requests. An attacker could potentially use this issue to cause
a resource leak, leading to a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.10:
   aspnetcore-runtime-7.0      7.0.117-0ubuntu1~23.10.1
   aspnetcore-runtime-8.0      8.0.3-0ubuntu1~23.10.1
   dotnet-runtime-7.0              7.0.117-0ubuntu1~23.10.1
   dotnet-runtime-8.0              8.0.3-0ubuntu1~23.10.1
   dotnet7                                  7.0.117-0ubuntu1~23.10.1
   dotnet8 8.0.103-8.0.3-0ubuntu1~23.10.1

Ubuntu 22.04 LTS:
   aspnetcore-runtime-7.0      7.0.117-0ubuntu1~22.04.1
   aspnetcore-runtime-8.0      8.0.3-0ubuntu1~22.04.1
   dotnet-runtime-7.0              7.0.117-0ubuntu1~22.04.1
   dotnet-runtime-8.0              8.0.3-0ubuntu1~22.04.1
   dotnet7                                  7.0.117-0ubuntu1~22.04.1
   dotnet8 8.0.103-8.0.3-0ubuntu1~22.04.1

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-6693-1
   CVE-2024-21392

Package Information:
https://launchpad.net/ubuntu/+source/dotnet7/7.0.117-0ubuntu1~23.10.1
https://launchpad.net/ubuntu/+source/dotnet8/8.0.103-8.0.3-0ubuntu1~23.10.1
https://launchpad.net/ubuntu/+source/dotnet7/7.0.117-0ubuntu1~22.04.1
https://launchpad.net/ubuntu/+source/dotnet8/8.0.103-8.0.3-0ubuntu1~22.04.1
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