1) Type confusion

EUVDB-ID: #VU5129

Risk: Critical

CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2016-4117

CWE-ID: CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Exploit availability: Yes

Description

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

The weakness exists due to type confusion error when processing .swf files. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution.

Note: the vulnerability was being actively exploited.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Adobe Flash Player: 20.0.0.228, 20.0.0.235, 20.0.0.267, 20.0.0.272, 20.0.0.286, 20.0.0.306, 21.0.0.182, 21.0.0.197, 21.0.0.213, 21.0.0.216, 21.0.0.226, 21.0.0.241, 21.0.0.242

Adobe AIR: 21.0.0.176, 21.0.0.198, 21.0.0.215

Adobe Flash Player for Linux: 11.2.202.238, 11.2.202.261, 11.2.202.262, 11.2.202.270, 11.2.202.273, 11.2.202.327, 11.2.202.332, 11.2.202.335, 11.2.202.336, 11.2.202.341, 11.2.202.350, 11.2.202.356, 11.2.202.418, 11.2.202.424, 11.2.202.425, 11.2.202.429, 11.2.202.438, 11.2.202.440, 11.2.202.440, 11.2.202.442, 11.2.202.451, 11.2.202.457, 11.2.202.466, 11.2.202.468, 11.2.202.481, 11.2.202.491, 11.2.202.535, 11.2.202.540, 11.2.202.554, 11.2.202.559, 11.2.202.569, 11.2.202.577, 11.2.202.616, 11.2.202.621

Adobe Flash Player Extended Support Release: 18.0.0.268, 18.0.0.324, 18.0.0.326, 18.0.0.329, 18.0.0.333, 18.0.0.343, 18.0.0.352

CPE2.3

• cpe:2.3:a:adobe:adobe_flash_player:21.0.0.241:*:*:*:*:*:*:*
• Full software list in CPE2.3 format available after registration.

External links

http://helpx.adobe.com/security/products/flash-player/apsb16-15.html

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?

Yes. This vulnerability is being exploited in the wild.