Vulnerability identifier: #VU27745

Vulnerability risk: Low

CVSSv3.1: 2.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-9609

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: Yes

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 processing unicode strings within the Javascript submitForm function. 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: 20.006.20034 - 20.006.20042, 15.006.30097 - 15.023.20053, 17.008.30051 - 17.012.20098

Adobe Reader: 2020.006.20034 - 2020.006.20042, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30518, 2017.008.30051 - 2017.012.20098, 2018.009.20044 - 2018.011.20063, 15.006.30097 - 15.023.20053

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External links
http://helpx.adobe.com/security/products/acrobat/apsb20-24.html

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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. However, proof of concept for this vulnerability is available.