Vulnerability identifier: #VU4884

Vulnerability risk: High

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-0971

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Adobe Flash Player
Client/Desktop applications / Plugins for browsers, ActiveX components
Adobe AIR
Client/Desktop applications / Multimedia software
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 vulnerability exists due to a heap-based buffer overflow when processing 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 may result in complete compromise of vulnerable system.

Mitigation
Update Adobe Flash Player to version 20.0.0.306.
Update Adobe Flash Player for Linux to version 11.2.202.569.
Update Adobe AIR to version 20.0.0.260.
Update Adobe Flash Player Extended Support Release to version 18.0.0.329.

Vulnerable software versions

Adobe Flash Player: 20.0.0.228 - 20.0.0.306

Adobe AIR: 20.0.0.204 - 20.0.0.260

Adobe Flash Player for Linux: 11.2.202.238 - 11.2.202.616

Adobe Flash Player Extended Support Release: 18.0.0.268 - 18.0.0.329

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External links
http://helpx.adobe.com/security/products/flash-player/apsb16-04.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.