PT-2021-3941 · Adobe · After Effects

Published 2021-07-20 · Updated 2021-09-14 · CVE-2021-35993

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Adobe After Effects versions 18.2.1 and earlier

Description The issue is caused by an out-of-bounds Write vulnerability when parsing a specially crafted file, potentially allowing an unauthenticated attacker to achieve arbitrary code execution in the context of the current user. Exploitation requires user interaction, where a victim must open a malicious file. This can be achieved through a specially crafted PDF file, leveraging a buffer overflow in dynamic memory.

Recommendations For Adobe After Effects versions 18.2.1 and earlier, consider avoiding the use of PDF files from untrusted sources until a patch is available. As a temporary workaround, restrict the ability to open files from unknown origins to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2021-04458

CVE-2021-35993

ZDI-21-897

Affected Products

After Effects

References · 7

• https://zerodayinitiative.com/advisories/ZDI-21-897 · Security Note
• https://osv.dev/vulnerability/CVE-2021-35993 · Vendor Advisory
• https://helpx.adobe.com/security/products/after_effects/apsb21-54.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-35993 · Security Note
• https://bdu.fstec.ru/vul/2021-04458 · Security Note
• https://cybersecurity-help.cz/vdb/SB2021072030 · Note
• https://t.me/cvenotify/20587 · Telegram Post