PT-2021-4962 · Adobe · Acrobat Reader

Published 2021-09-14 · Updated 2021-10-06 · CVE-2021-39852

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Acrobat Reader DC versions 2017.011.30199 through 2021.005.20060

Description The issue is related to a null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction, where a victim must open a malicious file.

Recommendations For Acrobat Reader DC versions 2017.011.30199 through 2021.005.20060, update to a version later than 2021.005.20060 to resolve the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2021-05716

CVE-2021-39852

Affected Products

Acrobat Reader

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2021-39852 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39852 · Vendor Advisory
• https://helpx.adobe.com/security/products/acrobat/apsb21-55.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05716 · Security Note
• https://t.me/cvenotify/22021 · Telegram Post
• https://t.me/cibsecurity/29659 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39852 · Note