Adobe Security Bulletin

Security Updates Available for Adobe Media Encoder | APSB21-118

Bulletin ID

Date Published

Priority

APSB21-118

December 14, 2021    

3

Summary

Adobe has released an update for Adobe Media Encoder.  This update resolves critical and moderate vulnerabilities that could lead to arbitrary code execution and privilege escalation.

                      

Affected Versions

Product

Version

Platform

Adobe Media Encoder

22.0 and earlier versions

Windows and macOS

Adobe Media Encoder

15.4.2 and earlier versions

Windows and macOS

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

Adobe Media Encoder

22.1.1

Windows and macOS

3

Adobe Media Encoder

15.4.3

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

CVE-2021-43756
  

Out-of-bounds Read (CWE-125)

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-2021-43757
  

Out-of-bounds Read (CWE-125)

Privilege escalation
 

Moderate

4.0

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

CVE-2021-43758

Out-of-bounds Read (CWE-125)

Privilege escalation

Moderate

4.0

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

CVE-2021-43759
  

Out-of-bounds Read (CWE-125)

Privilege escalation

Moderate

4.0

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

CVE-2021-43760

Acknowledgments

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

  • Mat Powell of Trend Micro Zero Day Initiative (CVE-2021-43757, CVE-2021-43758, CVE-2021-43759, CVE-2021-43760)

  • (yjdfy) CQY of Topsec Alpha Team (CVE-2021-43756)


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

 Adobe

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