Headline
CVE-2021-43755: Adobe Security Bulletin
Adobe After Effects versions 22.0 (and earlier) and 18.4.2 (and earlier) are 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 After Effects | APSB21-115
Bulletin ID
Date Published
Priority
ASPB21-115
December 14, 2021
3
Summary
Adobe has released an update for Adobe After Effects for Windows and macOS. This update addresses critical and moderate security vulnerabilities. Successful exploitation could lead to arbitrary code execution and privilege escalation in the context of the current user.
Affected Versions
Product
Version
Platform
Adobe After Effects
22.0 and earlier versions
Windows and macOS
Adobe After Effects
18.4.2 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 Rating
Availability
Adobe After Effects
22.1.1
Windows and macOS
3
Download Center
Adobe After Effects
18.4.3
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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2021-43755
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-2021-44188
Use After Free (CWE-416)
Privilege escalation
Moderate
3.3
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-44189
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-44190
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-44191
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-44192
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-44193
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-44194
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-44195
Out-of-bounds Read (CWE-125)
Privilege escalation
Moderate
3.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2021-43027
Acknowledgements
Adobe would like to thank the following researchers for reporting these issues and for working with Adobe to help protect our customers:
- Francis Provencher working with Trend Micro Zero Day Initiative - CVE-2021-43027
- Mat Powell of Trend Micro Zero Day Initiative - CVE-2021-44188, CVE-2021-44189, CVE-2021-44190, CVE-2021-44191, CVE-2021-44192, CVE-2021-44193, CVE-2021-44194, CVE-2021-44195
- CQY of Topsec Alpha Team (yjdfy) CVE-2021-43755
**Revisions: **
December 17, 2021: CVSS Base Scores updated for CVE-2021-44190, CVE-2021-44191, CVE-2021-44192, CVE-2021-44193, CVE-2021-44194, CVE-2021-44195, CVE-2021-44188
For more information, visit https://helpx.adobe.com/security.html, or email [email protected].
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