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Ubuntu 24.04 LTS 7058-1 critical: dotnet6 & dotnet8 remote execution risk

ubuntu
Calendar Grey October 8, 2024
Scroller Ubuntu
The latest releases of dotnet6 and dotnet8 tackle major vulnerabilities impacting Ubuntu versions 22.04 and 24.04. Ensure your systems are secure today!
Several security issues were fixed in dotnet6, dotnet8.

Summary

Several security issues were fixed in dotnet6, dotnet8.

Software Description:

- dotnet8: .NET CLI tools and runtime

- dotnet6: .NET CLI tools and runtime

Details:

Brennan Conroy discovered that the .NET Kestrel web server did not

properly handle closing HTTP/3 streams under certain circumstances. An

attacker could possibly use this issue to achieve remote code execution.

This vulnerability only impacted Ubuntu 22.04 LTS and Ubuntu 24.04 LTS.

(CVE-2024-38229)

It was discovered that .NET components designed to process malicious input

were susceptible to hash flooding attacks. An attacker could possibly use

this issue to cause a denial of service, resulting in a crash.

(CVE-2024-43483)

It was discovered that the .NET System.IO.Packaging namespace did not

properly process SortedList data structures. An attacker could possibly

use this issue to cause a denial of service, resulting in a crash.

(CVE-2024-43484)

It was discovered that .NET did not properly ha...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service software update remote code execution Ubuntu dotnet6 dotnet8

Update Instructions

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

Ubuntu 24.04 LTS
   aspnetcore-runtime-8.0          8.0.10-0ubuntu1~24.04.1
   dotnet-host-8.0                 8.0.10-0ubuntu1~24.04.1
   dotnet-hostfxr-8.0              8.0.10-0ubuntu1~24.04.1
   dotnet-runtime-8.0              8.0.10-0ubuntu1~24.04.1
   dotnet-sdk-8.0                  8.0.110-0ubuntu1~24.04.1
   dotnet8                         8.0.110-8.0.10-0ubuntu1~24.04.1

Ubuntu 22.04 LTS
   aspnetcore-runtime-6.0          6.0.135-0ubuntu1~22.04.1
   aspnetcore-runtime-8.0          8.0.10-0ubuntu1~22.04.1
   dotnet-host                     6.0.135-0ubuntu1~22.04.1
   dotnet-host-8.0                 8.0.10-0ubuntu1~22.04.1
   dotnet-hostfxr-6.0              6.0.135-0ubuntu1~22.04.1
   dotnet-hostfxr-8.0              8.0.10-0ubuntu1~22.04.1
   dotnet-runtime-6.0              6.0.135-0ubuntu1~22.04.1
   dotnet-runtime-8.0              8.0.10-0ubuntu1~22.04.1
   dotnet-sdk-6.0                  6.0.135-0ubuntu1~22.04.1
   dotnet-sdk-8.0                  8.0.110-0ubuntu1~22.04.1
   dotnet6                         6.0.135-0ubuntu1~22.04.1
   dotnet8                         8.0.110-8.0.10-0ubuntu1~22.04.1

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

References

  https://ubuntu.com/security/notices/USN-7058-1

  CVE-2024-38229, CVE-2024-43483, CVE-2024-43484, CVE-2024-43485

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7058-1

Topics%20covered

Topics Covered

security advisory denial of service software update remote code execution Ubuntu dotnet6 dotnet8

Package Information

https://launchpad.net/ubuntu/+source/dotnet8/8.0.110-8.0.10-0ubuntu1~24.04.1
https://launchpad.net/ubuntu/+source/dotnet6/6.0.135-0ubuntu1~22.04.1
https://launchpad.net/ubuntu/+source/dotnet8/8.0.110-8.0.10-0ubuntu1~22.04.1

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