Adobe Security Bulletin

Security Updates Available for Adobe After Effects | APSB21-79

Bulletin ID

Date Published

Priority

ASPB21-79

October 26, 2021    

3

Summary

Adobe has released an update for Adobe After Effects for Windows and macOS. This update addresses multiple critical and important vulnerabilities. Successful exploitation could lead to arbitrary code execution and application denial of service in the context of the current user.         

Affected Versions

Product

Version

Platform

Adobe After Effects

18.4.1 and earlier versions       

Windows

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

Version

Platform

Priority Rating

Availability

Adobe After Effects

22.0

Windows and macOS

3

Adobe After Effects

18.4.2

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 

CVE Numbers

Access of Memory Location After End of Buffer (CWE-788

Arbitrary code execution 

Critical

7.8

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVE-2021-40751   

Access of Memory Location After End of Buffer

(CWE-788)

Arbitrary code execution 

Critical 

7.8

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 

CVE-2021-40752 

Access of Memory Location After End of Buffer (CWE-788

Arbitrary code execution 

Critical 

7.8

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVE-2021-40753 

Access of Memory Location After End of Buffer (CWE-788

Arbitrary code execution 

Critical 

7.8

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 

CVE-2021-40754   

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-2021-40755

NULL Pointer Dereference (CWE-476

Application denial-of-service 

Important

5.5

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H 

CVE-2021-40756   

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-2021-40757 

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-2021-40758  

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-2021-40759   

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-2021-40760  

NULL Pointer Dereference (CWE-476

Application denial-of-service 

Important

5.5

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H 

CVE-2021-40761   

Acknowledgements

Adobe would like to thank the following researchers for reporting these issues and for working with Adobe to help protect our customers:  

  • (hy350) HY350 of Topsec Alpha Team CVE-2021-40761; CVE-2021-40756;   

  • (yjdfy) CQY of Topsec Alpha Team CVE-2021-40760; CVE-2021-40759; CVE-2021-40758; CVE-2021-40757; CVE-2021-40755;  CVE-2021-40753      

  • (cff_123) CFF of Topsec Alpha Team CVE-2021-40751; CVE-2021-40752; CVE-2021-40754 

Revisions

  • October 28, 2021: Added row to solution table for N-1. 


For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.

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