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AUSCERT External Security Bulletin Redistribution
ESB-2022.0107
Citrix Workspace App for Linux Security Update
12 January 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Citrix Workspace App
Publisher: Citrix
Operating System: Linux variants
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2022-21825
Original Bulletin:
https://support.citrix.com/article/CTX338435
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Citrix Workspace App for Linux Security Update
Reference: CTX338435
Category : High
Created : 11 January 2022
Modified : 11 January 2022
Applicable Products
o Citrix Workspace App
Description of Problem
A vulnerability has been identified in Citrix Workspace app for Linux that
could result in a local user elevating their privilege level to root on the
computer running Citrix Workspace app for Linux.
The vulnerability has the following identifier:
+--------------+-----------+-------------+------------------------------------+
|CVE ID |Description|Vulnerability|Pre-conditions |
| | |Type | |
+--------------+-----------+-------------+------------------------------------+
| |Local |CWE-284: |Local user access to a system where |
|CVE-2022-21825|privilege |Improper |Citrix Workspace App for Linux has |
| |Escalation |Access |been installed with App Protection. |
| | |Control | |
+--------------+-----------+-------------+------------------------------------+
This vulnerability only affects Citrix Workspace app for Linux 2012 - 2111 and
only exists if App Protection was installed as part of Citrix Workspace app for
Linux. This vulnerability does not exist if App Protection is not installed.
Citrix Workspace app for other platforms is not affected by this issue.
What Customers Should Do
This issue has been addressed in the following versions of Citrix Workspace app
for Linux:
o Citrix Workspace App for Linux 2112 and later versions
Citrix strongly recommends that affected customers upgrade to a fixed version
as soon as possible.
The latest version of Citrix Workspace app for Linux is available from the
following Citrix website location:
https://www.citrix.com/downloads/workspace-app/linux/
Acknowledgements
Citrix thanks Florian Kerber of Siemens CERT for working with us to protect
Citrix customers.
What Citrix is Doing
Citrix is notifying customers and channel partners about this potential
security issue. This article is also available from the Citrix Knowledge Center
at https://support.citrix.com/ .
Obtaining Support on This Issue
If you require technical assistance with this issue, please contact Citrix
Technical Support. Contact details for Citrix Technical Support are available
at https://www.citrix.com/support/open-a-support-case/ .
Reporting Security Vulnerabilities to Citrix
Citrix welcomes input regarding the security of its products and considers any
and all potential vulnerabilities seriously. For details on our vulnerability
response process and guidance on how to report security-related issues to
Citrix, please see the following webpage: https://www.citrix.com/about/
trust-center/vulnerability-process.html .
Disclaimer
This document is provided on an "as is" basis and does not imply any kind of
guarantee or warranty, including the warranties of merchantability or fitness
for a particular use. Your use of the information on the document is at your
own risk. Citrix reserves the right to change or update this document at any
time.
Changelog
Date Change
2022-01-11 Initial Publication
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