Vulnerability identifier: #VU57299

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-40730

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 gain access to sensitive information.

The vulnerability exists due to a use-after-free error when processing JPG2000 images inside a PDF files. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger a use-after-free error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Reader: 2017.008.30051 - 2017.011.30202, 2020.001.30020 - 2020.013.20074

Adobe Acrobat: 2017.008.30051 - 2017.011.30202, 20.001.30020 - 20.013.20074

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CPE

• cpe:2.3:a:adobe:adobe_reader:2017.011.30202:*:*:*:*:*:*:*

External links
http://helpx.adobe.com/security/products/acrobat/apsb21-104.html
http://www.zerodayinitiative.com/advisories/ZDI-21-1162/

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?