PT-2021-4919 · Adobe · After Effects

Published 2021-10-26 · Updated 2022-04-25 · CVE-2021-40752

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Adobe After Effects versions 18.4 and earlier

Description The issue is related to a memory corruption vulnerability due to insecure handling of a malicious .m4a file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required, where the victim must open a specially crafted file to exploit this vulnerability. This can be attributed to a buffer overflow in memory, allowing an attacker to execute arbitrary code in the target system using a specially created file.

Recommendations For Adobe After Effects versions 18.4 and earlier, consider avoiding the use of .m4a files until a patch is available. As a temporary workaround, restrict the ability to open specially crafted files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Access of Memory Location After End of Buffer

Weakness Enumeration

CWE-119

CWE-788

Related Identifiers

BDU:2021-05657

CVE-2021-40752

Affected Products

After Effects

References · 6

• https://osv.dev/vulnerability/CVE-2021-40752 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05657 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-40752 · Security Note
• https://helpx.adobe.com/security/products/after_effects/apsb21-79.html · Vendor Advisory
• https://t.me/cibsecurity/32638 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021110304 · Note