#VU5799 Type confusion error in Adobe Flash Player and Adobe Flash Player for Linux - CVE-2017-2995

Vulnerability identifier: #VU5799

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/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-2017-2995

CWE-ID: CWE-704

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 / Plugins for browsers, ActiveX components

Vendor: Adobe

Description

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

The vulnerability exists due to a type confusion error in Adobe Flash Player when processing data passed within MessageChannel objects. A remote attacker can create a specially crafted .swf file, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install Adobe Flash 24.0.0.221.

Vulnerable software versions

Adobe Flash Player: 23.0.0.162 - 24.0.0.194

Adobe Flash Player for Linux: 24.0.0.186 - 24.0.0.194

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External links
https://helpx.adobe.com/security/products/flash-player/apsb17-04.html
https://www.zerodayinitiative.com/advisories/ZDI-17-109/

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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.