Use-after-free in Adobe Reader and Adobe Acrobat - CVE-2022-34234

Vulnerability identifier: #VU65231

CSH Severity: Low

CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-34234

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a use-after-free error in printWithParams when handling Doc objects. A remote attacker can trick the victim to open a specially crafted PDF file, trigger a use-after-free error and gain access to sensitive information.

Adobe Reader
Adobe Acrobat

Install updates from vendor's website.

Adobe Reader - addressed in versions 17.012.30249, 20.005.30362, 22.001.20169
Adobe Acrobat - addressed in versions 17.012.30249, 20.005.30362, 22.001.20169

• https://helpx.adobe.com/security/products/acrobat/apsb22-32.html
• https://www.zerodayinitiative.com/advisories/ZDI-22-984/

• Multiple vulnerabilities in Adobe Acrobat and Reader