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AUSCERT External Security Bulletin Redistribution
ESB-2021.0445
APSB21-10 Security update available for Adobe Photoshop
10 February 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Adobe Photoshop 2020
Adobe Photoshop 2021
Publisher: Adobe
Operating System: Windows
Mac OS
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-21051 CVE-2021-21050 CVE-2021-21049
CVE-2021-21048 CVE-2021-21047
Original Bulletin:
https://helpx.adobe.com/security/products/photoshop/apsb21-10.html
- --------------------------BEGIN INCLUDED TEXT--------------------
Security updates available for Adobe Photoshop | APSB21-10
+-----------------------+-----------------------------------+-----------------+
| Bulletin ID | Date Published | Priority |
+-----------------------+-----------------------------------+-----------------+
|APSB21-10 |February 09, 2021 |3 |
+-----------------------+-----------------------------------+-----------------+
Summary
Adobe has released updates for Photoshop for Windows and macOS. These updates
resolve multiple critical vulnerabilities. Successful exploitation could lead
to arbitrary code execution in the context of the current user.
Affected Versions
+------------------+-----------------------------------+----------------------+
| Product | Affected version | Platform |
+------------------+-----------------------------------+----------------------+
|Photoshop 2020 |21.2.4 and earlier versions |Windows and macOS |
+------------------+-----------------------------------+----------------------+
|Photoshop 2021 |22.1.1 and earlier versions |Windows and macOS |
+------------------+-----------------------------------+----------------------+
Solution
Adobe categorizes these updates with the following priority ratings and
recommends users update their installation to the newest version via the
Creative Cloud desktop app's update mechanism. For more information, please
reference this help page .
+-------------------+---------------------+-----------------------+-----------+
| Product | Updated versions | Platform | Priority |
+-------------------+---------------------+-----------------------+-----------+
|Photoshop 2020 |21.2.5 |Windows and macOS |3 |
+-------------------+---------------------+-----------------------+-----------+
|Photoshop 2021 |22.2 |Windows and macOS |3 |
+-------------------+---------------------+-----------------------+-----------+
Note:
For managed environments, IT administrators can use the Admin Console to deploy
Creative Cloud applications to end users. Refer to this help page for more
information.
Vulnerability details
+------------------------+--------------------------+---------+---------------+
| Vulnerability Category | Vulnerability Impact |Severity | CVE Number |
+------------------------+--------------------------+---------+---------------+
| | | |CVE-2021-21049 |
|Out-of-bounds read |Arbitrary code execution |Critical | |
| | | |CVE-2021-21050 |
+------------------------+--------------------------+---------+---------------+
| | | |CVE-2021-21048 |
|Buffer Overflow |Arbitrary code execution |Critical | |
| | | |CVE-2021-21051 |
+------------------------+--------------------------+---------+---------------+
|Out-of-bounds write |Arbitrary code execution |Critical |CVE-2021-21047 |
+------------------------+--------------------------+---------+---------------+
Acknowledgments
Adobe would like to thank the following researchers for reporting these issues
and for working with Adobe to help protect our customers:
o Tran Van Khang \xe2\x80\x93 khangkito (VinCSS) working with Trend Micro
Zero Day Initiative (CVE-2021-21047)
o Francis Provencher {PRL} working with Trend Micro Zero Day Initiative
(CVE-2021-21048)
o rgod working with Trend Micro Zero Day Initiative (CVE-2021-21049,
CVE-2021-21050)
o guoxi (CVE-2021-21051)
- --------------------------END INCLUDED TEXT--------------------
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