Adobe Security Bulletin

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Security Updates Available for Adobe After Effects | APSB21-33

Bulletin ID	Date Published	Priority
ASPB21-33	May 11, 2021	3

Summary

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

Affected Versions

Product	Version	Platform
Adobe After Effects	18.1 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	18.2	Windows and macOS	3	Download Center
Adobe After Effects	17.7.1	Windows and macOS	3	Download Center

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.

Note:

CVE-2021-28586 and CVE-2021-28587 are resolved by Adobe After Effects version 18.1 and later.

Vulnerability details

Vulnerability Category	Vulnerability Impact	Severity	CVE Numbers
OS Command Injection	Arbitrary Code Execution	Critical	CVE-2021-28571
Out-of-bounds Read	Arbitrary file system read	Important	CVE-2021-28587
Out-of-bounds Write	Arbitrary Code Execution	Critical	CVE-2021-28586
Uncontrolled Search Path Element	Arbitrary Code Execution	Critical	CVE-2021-28570

Acknowledgments

Adobe would like to thank the following for reporting the relevant issues and for working with Adobe to help protect our customers.

Taylor Leach (CVE-2021-28571)
Mat Powell (@mrpowell) & Joshua Smith (@kernelsmith) of Trend Micro Zero Day Initiative (CVE-2021-28586, CVE-2021-28587) 
hhjjyy and Yongjun Liu of nsfocus security team (CVE-2021-28570)

Revisions

May 12, 2021: Included details for CVE-2021-28586, CVE-2021-28587

September 1, 2021: Included details for CVE-2021-28570.

October 6, 2021: Added solution row for N-1 version.