Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.2996
btrbk security update
6 September 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: btrbk
Publisher: Debian
Operating System: Debian GNU/Linux
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-38173
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2021/09/msg00002.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running btrbk check for an updated version of the software for their
operating system.
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Debian LTS Advisory DLA-2755-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Thorsten Alteholz
September 05, 2021 https://wiki.debian.org/LTS
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Package : btrbk
Version : 0.24.0-1+deb9u1
CVE ID : CVE-2021-38173
An issue has been found in btrbk, a backup tool for btrfs subvolumes.
Due to mishandling of remote hosts filtering SSH commands using
ssh_filter_btrbk.sh in authorized_keys an arbitrary code execution would
have been allowed.
For Debian 9 stretch, this problem has been fixed in version
0.24.0-1+deb9u1.
We recommend that you upgrade your btrbk packages.
For the detailed security status of btrbk please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/btrbk
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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===========================================================================
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The University of Queensland
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