A btrbk security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: btrbk-0.31.3-1.fc34

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Fedora Update Notification
FEDORA-2022-dc62389784
2022-01-19 01:53:29.295579
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Name : btrbk
Product : Fedora 34
Version : 0.31.3
Release : 1.fc34
URL :   https://digint.ch/btrbk/
Summary : Tool for creating snapshots and remote backups of btrfs sub-volumes
Description :
Backup tool for btrfs sub-volumes, using a configuration file, allows
creation of backups from multiple sources to multiple destinations,
with ssh and flexible retention policy support (hourly, daily,
weekly, monthly)

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Update Information:

Remove executable permissions from scripts in /usr/share
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ChangeLog:

* Mon Jan 10 2022 Juan Orti Alcaine - 0.31.3-1
- Version 0.31.3 (#1765928)
- Remove executable permissions from scripts in /usr/share (#1994989)
* Wed Jul 21 2021 Fedora Release Engineering - 0.28.3-5
- Rebuilt for   https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
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References:

[ 1 ] Bug #1994989 - CVE-2021-38173 btrbk: remote execution in ssh_filter_btrbk.sh [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1994989
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2022-dc62389784' 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
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