PT-2021-4986 · Adobe · Indesign

Published 2021-09-14 · Updated 2021-12-01 · CVE-2021-39821

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Adobe InDesign versions 16.3 and earlier Adobe InDesign versions 16.3.1 and earlier

Description The issue is related to an out-of-bounds read vulnerability in Adobe InDesign, which could allow an attacker to execute arbitrary code with the help of a specially crafted file. Exploitation of this issue requires user interaction, where a victim must open a malicious TIF file. This could result in arbitrary code execution in the context of the current user.

Recommendations For Adobe InDesign versions 16.3 and earlier, update to a version that fixes the out-of-bounds read vulnerability to prevent arbitrary code execution. For Adobe InDesign versions 16.3.1 and earlier, update to a version that fixes the out-of-bounds read vulnerability to prevent arbitrary code execution. As a temporary workaround, consider avoiding the use of TIF files in Adobe InDesign until a patch is available.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2021-05749

CVE-2021-39821

ZDI-21-1097

Affected Products

Indesign

References · 6

• https://zerodayinitiative.com/advisories/ZDI-21-1097 · Security Note
• https://helpx.adobe.com/security/products/indesign/apsb21-73.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39821 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39821 · Security Note
• https://bdu.fstec.ru/vul/2021-05749 · Security Note
• https://t.me/cvenotify/21818 · Telegram Post