PT-2021-3927 · Adobe · After Effects

Published 2021-07-20 · Updated 2022-10-27 · CVE-2021-35995

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 version 18.2.1 and earlier

Description The issue is caused by improper input validation when parsing a specially crafted file, allowing an unauthenticated attacker to disclose arbitrary memory information in the context of the current user. Exploitation requires user interaction, where a victim must open a malicious file. The vulnerability can also allow a remote attacker to execute arbitrary code using a specially crafted MP4 file.

Recommendations For Adobe After Effects version 18.2.1 and earlier, update to a version that fixes the improper input validation vulnerability. As a temporary workaround, consider avoiding the use of MP4 files from untrusted sources until a patch is available. Restrict access to the file parsing functionality to minimize the risk of exploitation.

Fix

RCE

Improper Initialization

Weakness Enumeration

CWE-20

CWE-665

Related Identifiers

BDU:2021-04444

CVE-2021-35995

ZDI-21-898

Affected Products

After Effects

References · 8

• https://bdu.fstec.ru/vul/2021-04444 · Security Note
• https://helpx.adobe.com/security/products/after_effects/apsb21-54.html · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-898 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-35995 · Security Note
• https://osv.dev/vulnerability/CVE-2021-35995 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021072030 · Note
• https://t.me/cvenotify/20585 · Telegram Post
• https://t.me/cibsecurity/28229 · Telegram Post