Headline
CVE-2021-42735: Adobe Security Bulletin
Adobe Photoshop version 22.5.1 (and earlier versions ) is affected by an Access of Memory Location After End of Buffer vulnerability, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.
Security updates available for Adobe Photoshop | APSB21-109
Bulletin ID
Date Published
Priority
APSB21-109
October 26, 2021
3
Summary
Adobe has released updates for Photoshop for Windows and macOS. These updates resolve a critical and moderate vulnerabilities. Successful exploitation could lead in arbitrary code execution and privilege escalation in the context of the current user.
Affected Versions
22.5.1 and earlier versions
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 2021
22.5.2
Windows and macOS
3
Photoshop 2022
23.0
Windows and macOS
3
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
CVSS base score
CVSS vector
CVE Number
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-42734
Access of Memory Location After End of Buffer (CWE-788)
Arbitrary code execution
Critical
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2021-42735
Buffer Overflow (CWE-120)
Arbitrary code execution
Critical
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2021-42736
Acknowledgments
Adobe would like to thank the following researcher for reporting this issue and for working with Adobe to help protect our customers:
(yjdfy) CQY of Topsec Alpha Team CVE-2021-42735
(cff_123) CFF of Topsec Alpha Team- CVE-2021-42736
Mat Powell of Trend Micro Zero Day Initiative (CVE-2021-42734)
For more information, visit https://helpx.adobe.com/security.html, or email [email protected].
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