PT-2021-2304 · Adobe · Acrobat+1

Published 2021-02-09 · Updated 2021-09-08 · CVE-2021-21036

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 Acrobat versions prior to 2020.013.20074 Adobe Acrobat versions prior to 2020.001.30018 Adobe Acrobat versions prior to 2017.011.30188 Adobe Reader versions prior to 2020.013.20074 Adobe Reader versions prior to 2020.001.30018 Adobe Reader versions prior to 2017.011.30188

Description The issue is related to an integer overflow vulnerability. It can be exploited by a remote attacker using a specially crafted PDF file, allowing them to execute arbitrary code in the context of the current user. Exploitation requires user interaction, such as opening a malicious file.

Recommendations For Adobe Acrobat versions prior to 2020.013.20074, update to a version later than 2020.013.20074. For Adobe Acrobat versions prior to 2020.001.30018, update to a version later than 2020.001.30018. For Adobe Acrobat versions prior to 2017.011.30188, update to a version later than 2017.011.30188. For Adobe Reader versions prior to 2020.013.20074, update to a version later than 2020.013.20074. For Adobe Reader versions prior to 2020.001.30018, update to a version later than 2020.001.30018. For Adobe Reader versions prior to 2017.011.30188, update to a version later than 2017.011.30188.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2021-01538

CVE-2021-21036

Affected Products

Acrobat

Reader

References · 6

• https://osv.dev/vulnerability/CVE-2021-21036 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01538 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/661681 · Security Note
• https://helpx.adobe.com/security/products/acrobat/apsb21-09.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21036 · Security Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21036 · Note