Vulnerability identifier: #VU948

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-6981

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Flash Player
Client/Desktop applications / Plugins for browsers, ActiveX components
Adobe Flash Player for Linux
Client/Desktop applications / Multimedia software
Adobe Flash Player Extended Support Release
Client/Desktop applications / Multimedia software

Vendor: Adobe

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.

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

Successful exploitation of the vulnerability will result in arbitrary code execution on the vulnerable system.

Mitigation
Update Adobe Flash Player Desktop Runtime for Google Chrome, Windows and Macintosh, Microsoft Edge and Internet Explorer 11 to version 23.0.0.185;
Update Adobe Flash Player Extended Support Release to version 18.0.0.382;
Update Adobe Flash Player for Linux to version 11.2.202.637.

Vulnerable software versions

Adobe Flash Player: 19.0.0.185 - 23.0.0.185

Adobe Flash Player for Linux: 11.2.202.238 - 11.2.202.637

Adobe Flash Player Extended Support Release: 18.0.0.268 - 18.0.0.382

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External links
http://helpx.adobe.com/security/products/flash-player/apsb16-32.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.