#VU9234 Use-after-free error in Adobe Reader and Adobe Acrobat - CVE-2017-16393

Vulnerability identifier: #VU9234

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-16393

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 execute arbitrary code on the target system.

The weakness exists due to a use-after-free error when handling malicious input. A remote attacker can trick the victim into opening a specially crafted .pdf file, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update Acrobat DC and Acrobat Reader DC 2017.x to version 2018.009.20044.
Update Acrobat 2017 and Acrobat Reader 2017 to version 2017.011.30068.
Update Acrobat DC and Acrobat Reader DC 2015.x to version 2015.006.30392.
Update Acrobat XI and Reader XI to version 11.0.23.

Vulnerable software versions

Adobe Reader: 11.0.0 - 11.0.22, 2015.006.30306 - 2017.012.20098

Adobe Acrobat: 11.0.0, 11.0.1, 11.0.2, 11.0.3, 11.0.4, 11.0.5, 11.0.6, 11.0.7, 11.0.8, 11.0.9, 11.0.10, 11.0.11, 11.0.12, 11.0.13, 11.0.15, 11.0.16, 11.0.17, 11.0.18, 11.0.19, 11.0.20, 11.0.22, 15.006.30306 - 15.006.30355, 17.008.30051 - 17.012.20098

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External links
https://helpx.adobe.com/security/products/acrobat/apsb17-36.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.