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DebianDEBIAN:DLA-2755-1:7720D

HistorySep 05, 2021 - 9:47 p.m.

[SECURITY] [DLA 2755-1] btrbk security update

2021-09-0521:47:02

lists.debian.org

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

73.5%

JSON

Debian LTS Advisory DLA-2755-1 [email protected]
https://www.debian.org/lts/security/ Thorsten Alteholz
September 05, 2021 https://wiki.debian.org/LTS

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

OSVersionArchitecturePackageVersionFilename
Debian9allbtrbk< 0.24.0-1+deb9u1btrbk_0.24.0-1+deb9u1_all.deb
Debian11allbtrbk< 0.27.1-1.1+deb11u1btrbk_0.27.1-1.1+deb11u1_all.deb
Debian10allbtrbk< 0.27.1-1+deb10u1btrbk_0.27.1-1+deb10u1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	9	all	btrbk	< 0.24.0-1+deb9u1	btrbk_0.24.0-1+deb9u1_all.deb
Debian	11	all	btrbk	< 0.27.1-1.1+deb11u1	btrbk_0.27.1-1.1+deb11u1_all.deb
Debian	10	all	btrbk	< 0.27.1-1+deb10u1	btrbk_0.27.1-1+deb10u1_all.deb