Bulletin ID
Last updated on
Jul 26, 2021
Security update available for Adobe Acrobat and Reader | APSB21-37
|
|
Date Published |
Priority |
|---|---|---|
|
APSB21-37 |
June 08, 2021 |
2 |
Summary
Adobe has released security updates for Adobe Acrobat and Reader for Windows and macOS. These updates address multiple critical vulnerabilities. Successful exploitation could lead to arbitrary code execution in the context of the current user.
Affected Versions
|
Track |
Affected Versions |
Platform |
|
|
Acrobat DC |
Continuous |
2021.001.20155 and earlier versions |
Windows and macOS |
|
Acrobat Reader DC |
Continuous |
2021.001.20155 and earlier versions |
Windows and macOS |
|
|
|
|
|
|
Acrobat 2020 |
Classic 2020 |
2020.001.30025 and earlier versions |
Windows & macOS |
|
Acrobat Reader 2020 |
Classic 2020 |
2020.001.30025 and earlier versions |
Windows & macOS |
|
|
|
|
|
|
Acrobat 2017 |
Classic 2017 |
2017.011.30196 and earlier versions |
Windows & macOS |
|
Acrobat Reader 2017 |
Classic 2017 |
2017.011.30196 and earlier versions |
Windows & macOS |
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:
|
Track |
Updated Versions |
Platform |
Priority Rating |
Availability |
|
|
Acrobat DC |
Continuous |
2021.005.20048 |
Windows and macOS |
2 |
|
|
Acrobat Reader DC |
Continuous |
2021.005.20048 |
Windows and macOS |
2 |
|
|
|
|
|
|
|
|
|
Acrobat 2020 |
Classic 2020 |
2020.004.30005 |
Windows and macOS |
2 |
|
|
Acrobat Reader 2020 |
Classic 2020 |
2020.004.30005 |
Windows and macOS |
2 |
|
|
|
|
|
|
|
|
|
Acrobat 2017 |
Classic 2017 |
2017.011.30197 |
Windows and macOS |
2 |
|
|
Acrobat Reader 2017 |
Classic 2017 |
2017.011.30197 |
Windows and macOS |
2 |
Vulnerability Details
| Vulnerability Category | Vulnerability Impact | Severity | CVSS base score |
CVSS vector |
CVE Number |
|---|---|---|---|---|---|
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-2021-28554 CVE-2021-28551 |
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-2021-28552 CVE-2021-28631 CVE-2021-28632 |
Acknowledgements
Adobe would like to thank the following for reporting the relevant issues and for working with Adobe to help protect our customers:
- Mark Vincent Yason (@MarkYason) working with Trend Micro Zero Day Initiative (CVE-2021-28554, CVE-2021-28631, CVE-2021-28632)
- Anonymous working with Trend Micro Zero Day Initiative (CVE-2021-28552)
- qiaoli01 (CVE-2021-28551)
Revisions
June 10, 2021: Updated version number of Acrobat DC and Acrobat Reader DC in the Solution table.
For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.
