A containerd security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: containerd-1.5.7-1.fc34

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Fedora Update Notification
FEDORA-2021-df975338d4
2021-10-19 00:36:08.674370
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Name : containerd
Product : Fedora 34
Version : 1.5.7
Release : 1.fc34
URL :   https://github.com/containerd/containerd
Summary : Open and reliable container runtime
Description :

Containerd is an industry-standard container runtime with an emphasis on
simplicity, robustness and portability. It is available as a daemon for Linux
and Windows, which can manage the complete container lifecycle of its host
system: image transfer and storage, container execution and supervision,
low-level storage and network attachments, etc.

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Update Information:

Security fixes for moby-engine and containerd containerd: - fixes
CVE-2021-41103 - Fix insufficiently restricted permissions on container root and
plugin directories - update to upstream 1.5.7 moby-engine: - fixes
CVE-2021-41092, CVE-2021-41089 and CVE-2021-41091 - patches seccomp policy to
fix clone3() issue - update to upstream 20.10.9
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ChangeLog:

* Sun Oct 10 2021 Olivier Lemasle - 1.5.7-1
- Update to upstream 1.5.7 (fixes rhbz#2009149)
- Fixes CVE-2021-41103 (fixes rhbz#2011014, rhbz#2011007)
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References:

[ 1 ] Bug #2011007 - CVE-2021-41103 containerd: insufficiently restricted permissions on container root and plugin directories
  https://bugzilla.redhat.com/show_bug.cgi?id=2011007
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-df975338d4' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys