Headline
CVE-2021-40777: Adobe Security Bulletin
Adobe Media Encoder version 15.4.1 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.
Security Updates Available for Adobe Media Encoder | APSB21-99
Bulletin ID
Date Published
Priority
APSB21-99
October 26, 2021
3
Summary
Adobe has released an update for Adobe Media Encoder. This update resolves critical and important vulnerabilities that could lead to arbitrary code execution, memory leak and application denial of service.
Affected Versions
Product
Version
Platform
Adobe Media Encoder
15.4.1 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
22.0
Windows and macOS
3
Adobe Media Encoder
15.4.2
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
CVSS vector
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-2021-40777
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-2021-40778
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-2021-40779
CVE-2021-43013
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-2021-40780
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-2021-40781
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-2021-40782
Acknowledgments
Adobe would like to thank the following for reporting these issues and for working with Adobe to help protect our customers:
- (hy350) HY350 of Topsec Alpha Team CVE-2021-40782; CVE-2021-40781; CVE-2021-40778
(yjdfy) CQY of Topsec Alpha Team CVE-2021-40780; CVE-2021-40779
(cff_123) CFF of Topsec Alpha Team CVE-2021-40777 and CVE-2021-43013.
Revisions
October 28, 2021: Added details for CVE-2021-43013.
October 29, 2021: Added row to solution table for N-1 version.
November 10, 2021: Updated vulnerability details for CVE-2021-40778.
For more information, visit https://helpx.adobe.com/security.html, or email [email protected]