#VU53925 Use-after-free in Adobe Reader and Adobe Acrobat


Published: 2021-06-08 | Updated: 2021-06-11

Vulnerability identifier: #VU53925

Vulnerability risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28632

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Reader
Client/Desktop applications / Office applications
Adobe Acrobat
Client/Desktop applications / Office applications

Vendor: Adobe

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition when processing AcroForm fields. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger a use-after-free error and compromise the affected system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Reader: 2020.001.30020 - 2020.013.20074, 2017.011.30156 - 2017.011.30196

Adobe Acrobat: 20.001.30020 - 20.013.20074, 2017.008.30051 - 2017.011.30196


CPE

External links
http://helpx.adobe.com/security/products/acrobat/apsb21-37.html
http://www.zerodayinitiative.com/advisories/ZDI-21-663/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability