Headline
CVE-2023-26425: Adobe Security Bulletin
Adobe Acrobat Reader versions 23.001.20093 (and earlier) and 20.005.30441 (and earlier) are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Security update available for Adobe Acrobat and Reader | APSB23-24
Bulletin ID
Date Published
Priority
APSB23-24
April 11, 2023
3
Summary
Adobe has released security updates for Adobe Acrobat and Reader for Windows and macOS. These updates address critical and important vulnerabilities. Successful exploitation could lead to arbitrary code execution, privilege escalation, security feature bypass and memory leak.
Affected Versions
Product
Track
Affected Versions
Platform
Acrobat DC
Continuous
23.001.20093 and earlier versions
Windows & macOS
Acrobat Reader DC
Continuous
23.001.20093 and earlier versions
Windows & macOS
Acrobat 2020
Classic 2020
20.005.30441 and earlier versions
Windows & macOS
Acrobat Reader 2020
Classic 2020
20.005.30441 and earlier versions
Windows & macOS
For questions regarding Acrobat DC, please visit the Acrobat DC FAQ page.
For questions regarding Acrobat Reader DC, please visit the Acrobat Reader DC FAQ page.
Solution
Adobe recommends users update their software installations to the latest versions by following the instructions below.
The latest product versions are available to end users via one of the following methods:
Users can update their product installations manually by choosing Help > Check for Updates.
The products will update automatically, without requiring user intervention, when updates are detected.
The full Acrobat Reader installer can be downloaded from the Acrobat Reader Download Center.
For IT administrators (managed environments):
Refer to the specific release note version for links to installers.
Install updates via your preferred methodology, such as AIP-GPO, bootstrapper, SCUP/SCCM (Windows), or on macOS, Apple Remote Desktop and SSH.
Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version:
Product
Track
Updated Versions
Platform
Priority Rating
Availability
Acrobat DC
Continuous
23.001.20143
Windows and macOS
3
Release Notes
Acrobat Reader DC
Continuous
23.001.20143
Windows and macOS
3
Release Notes
Acrobat 2020
Classic 2020
20.005.30467
Windows and macOS
3
Release Notes
Acrobat Reader 2020
Classic 2020
20.005.30467
Windows and macOS
3
Release Notes
Vulnerability Details
Vulnerability Category
Vulnerability Impact
Severity
CVSS base score
CVSS vector
CVE Number
Out-of-bounds Write (CWE-787)
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-2023-26395
Violation of Secure Design Principles (CWE-657)
Privilege escalation
Important
6.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L
CVE-2023-26396
Out-of-bounds Read (CWE-125)
Memory leak
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2023-26397
Improper Input Validation (CWE-20)
Arbitrary code execution
Critical
8.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVE-2023-26405
Improper Access Control (CWE-284)
Security feature bypass
Critical
8.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVE-2023-26406
Improper Input Validation (CWE-20)
Arbitrary code execution
Critical
8.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVE-2023-26407
Improper Access Control (CWE-284)
Security feature bypass
Critical
8.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVE-2023-26408
Use After Free (CWE-416)
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-2023-26417
Use After Free (CWE-416)
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-2023-26418
Use After Free (CWE-416)
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-2023-26419
Use After Free (CWE-416)
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-2023-26420
Integer Underflow (Wrap or Wraparound) (CWE-191)
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-2023-26421
Use After Free (CWE-416)
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-2023-26422
Use After Free (CWE-416)
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-2023-26423
Use After Free (CWE-416)
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-2023-26424
Out-of-bounds Read (CWE-125)
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-2023-26425
Acknowledgements
Adobe would like to thank the following for reporting these issues and for working with Adobe to help protect our customers:
Mark Vincent Yason (@MarkYason) working with Trend Micro Zero Day Initiative - CVE-2023-26417, CVE-2023-26418, CVE-2023-26419, CVE-2023-26420, CVE-2023-26422, CVE-2023-26423,
AbdulAziz Hariri (@abdhariri) of Haboob SA (@HaboobSa) - CVE-2023-26405, CVE-2023-26406, CVE-2023-26407, CVE-2023-26408
Anonymous working with Trend Micro Zero Day Initiative - CVE-2023-26424, CVE-2023-26425, CVE-2023-26421
Qingyang Chen of Topsec Alpha Team CVE-2023-26395
Koh M. Nakagawa (tsunekoh) - CVE-2023-26396
Kai Lu of Zscaler’s ThreatLabz - CVE-2023-26397
For more information, visit https://helpx.adobe.com/security.html, or email [email protected].