#VU59430 Out-of-bounds write


Published: 2022-01-11 | Updated: 2022-01-14

Vulnerability identifier: #VU59430

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-45061

CWE-ID: CWE-787

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 compromise vulnerable system.

The vulnerability exists due to a boundary error when processing embedded fonts. A remote attacker can create a specially crafted PDF file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 2017.008.30051 - 2017.011.30204, 2015.006.30503 - 2015.006.30527, 2020.001.30020 - 2020.013.20074, 2021.001.20135 - 2021.007.20099

Adobe Reader: 2017.011.30156 - 2017.011.30204, 2015.006.30508 - 2015.006.30523, 2020.001.30020 - 2020.013.20074, 2021.001.20135 - 2021.007.20099


CPE

External links
http://helpx.adobe.com/security/products/acrobat/apsb22-01.html
http://www.zerodayinitiative.com/advisories/ZDI-22-056/


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