Headline
CVE-2021-40761: Adobe Security Bulletin
Adobe After Effects version 18.4.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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
Download Center
Adobe After Effects
18.4.2
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.
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:3.0/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 [email protected].