[Bug 2027620] Re: DOTNET_ROOT is unnecessarily set

[Launchpad Bug Tracker]

This bug was fixed in the package dotnet7 - 7.0.110-0ubuntu1~22.04.1

---------------
dotnet7 (7.0.110-0ubuntu1~22.04.1) jammy-security; urgency=medium

  * New upstream release.
  * SECURITY UPDATE: remote code exection
    - CVE-2023-35390: When running certain dotnet commands(e.g. dotnet help
      add), dotnet attempts to locate and initiate a new process using
      cmd.exe. However, it prioritizes searching for cmd.exe in the current
      working directory (CWD) before checking other locations. This can
      potentially lead to the execution of malicious code.
  * SECURITY UPDATE: denial of service
    - CVE-2023-38178: ASP.NET Kestrel stream flow control issue causing a
      leak. A malicious QUIC client, that fires off many unidirectional
      streams with closed writing sides. This will bypass the HTTP/3 stream
      limit and Kestrel cannot keep up with stream processing.
  * SECURITY UPDATE: denial of service
    - CVE-2023-38180: Kestrel vulnerability to slow read attacks.

  [ Dominik Viererbe ]
  * d/README.source: updated content
    * added support documentation
    * added end of life process documentation
    * general overhaul
  * d/dotnet.sh.in: DOTNET_ROOT was unnecessarily set (LP: #2027620)
  * d/t/essential-binaries-and-config-files-should-be-present:
    remove check if DOTNET_ROOT is set
  * d/watch
    * updated matching-pattern to only match 6.0.1XX releases
    * d/watch file will fail now deliberately. See comment in d/watch
      for more information
  * unify d/repack-dotnet-tarball.sh into d/build-dotnet-tarball.sh and
    updated command line interface

 -- Ian Constantin <ian.constantin at canonical.com>  Wed, 02 Aug 2023
21:51:14 +0300

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https://bugs.launchpad.net/bugs/2027620

Title:
  DOTNET_ROOT is unnecessarily set

Status in dotnet6 package in Ubuntu:
  Fix Released
Status in dotnet7 package in Ubuntu:
  Fix Released
Status in dotnet6 source package in Jammy:
  Fix Released
Status in dotnet7 source package in Jammy:
  Fix Released
Status in dotnet6 source package in Kinetic:
  Won't Fix
Status in dotnet7 source package in Kinetic:
  Won't Fix
Status in dotnet6 source package in Lunar:
  Fix Released
Status in dotnet7 source package in Lunar:
  Fix Released
Status in dotnet6 source package in Mantic:
  Fix Released
Status in dotnet7 source package in Mantic:
  Fix Released

Bug description:
  This is what I see on my machine.

  ```
  rich at vancouver:~$ dotnet --version
  7.0.109
  rich at vancouver:~$ cat /etc/os-release | head -n 1
  PRETTY_NAME="Ubuntu 22.04.2 LTS"
  rich at vancouver:~$ export | grep DOTNET
  declare -x DOTNET_BUNDLE_EXTRACT_BASE_DIR="/home/rich/.cache/dotnet_bundle_extract"
  declare -x DOTNET_ROOT="/usr/lib/dotnet"
  rich at vancouver:~$ dotnet --info | grep ROOT
    DOTNET_ROOT       [/usr/lib/dotnet]
  rich at vancouver:~$ cat /etc/dotnet/install_location
  /usr/lib/dotnet
  ```

  I am surprised to see `DOTNET_ROOT` set. The value in
  `/etc/dotnet/install_location` is set to the same value and should be
  doing the same job. The `/etc/dotnet` configuration is intended for
  the global install and `DOTNET_ROOT` is intended for developers.

  Please re-consider (not) setting `DOTNET_ROOT`.

  Separately, is there a reason why `DOTNET_BUNDLE_EXTRACT_BASE_DIR` is
  set?

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