Comment 17 for bug 1911473

This bug was fixed in the package flatpak - 1.0.9-0ubuntu0.2

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flatpak (1.0.9-0ubuntu0.2) bionic-security; urgency=medium

  * SECURITY UPDATE: Flatpak sandbox escape via spawn portal (LP: #1911473)
    - debian/patches/CVE-2021-21261-1.patch: run: Convert all environment
      variables into bwrap arguments.
    - debian/patches/CVE-2021-21261-2.patch: common: Move
      flatpak_buffer_to_sealed_memfd_or_tmpfile to its own file.
    - debian/patches/CVE-2021-21261-3.patch: context: Add --env-fd option.
    - debian/patches/CVE-2021-21261-4.patch: portal: Convert --env in
      extra-args into --env-fd.
    - debian/patches/CVE-2021-21261-5.patch: portal: Do not use caller-supplied
      variables in environment.
    - CVE-2021-21261

 -- Paulo Flabiano Smorigo <email address hidden> Tue, 19 Jan 2021 14:21:40 +0000