PT-2021-5509 · Adobe · Bridge+1

Published 2021-11-16 · Updated 2022-04-25 · CVE-2021-42726

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 Bridge versions 11.1.1 and earlier Adobe Media Encoder versions 15.4 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 to exploit this vulnerability, as a victim must open a malicious M4A file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution.

Recommendations For Adobe Bridge versions 11.1.1 and earlier, update to a version later than 11.1.1 to resolve the issue. For Adobe Media Encoder versions 15.4 and earlier, update to a version later than 15.4 to resolve the issue. As a temporary workaround, consider avoiding the use of M4A files in Adobe Bridge and Adobe Media Encoder until a patch is available. Restrict access to malicious M4A files to minimize the risk of exploitation.

Fix

Buffer Overflow

Access of Memory Location After End of Buffer

Weakness Enumeration

CWE-119

CWE-788

Related Identifiers

BDU:2021-06359

CVE-2021-42726

Affected Products

Bridge

Media Encoder

References · 7

• https://osv.dev/vulnerability/CVE-2021-42726 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42726 · Security Note
• https://bdu.fstec.ru/vul/2021-06359 · Security Note
• https://helpx.adobe.com/security/products/bridge/apsb21-94.html · Vendor Advisory
• https://helpx.adobe.com/security/products/media-encoder/apsb21-70.html · Note
• https://t.me/cvenotify/29014 · Telegram Post
• https://t.me/cibsecurity/32493 · Telegram Post