#VU70882 Out-of-bounds read in Adobe Acrobat and Adobe Reader


Published: 2023-01-10 | Updated: 2023-02-01

Vulnerability identifier: #VU70882

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-21581

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

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

Vendor: Adobe

Description

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

The vulnerability exists due to a boundary condition when handling embedded fonts. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 22.001.20085 - 22.003.20282, 20.001.30002 - 20.013.20074

Adobe Reader: 22.001.20085 - 22.003.20282, 20.005.30331 - 20.005.30418


External links
http://helpx.adobe.com/security/products/acrobat/apsb23-01.html
http://www.zerodayinitiative.com/advisories/ZDI-23-081/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability