#VU4095 Heap-based buffer overflow in Adobe Flash Player and Adobe Flash Player for Linux - CVE-2017-2935

Vulnerability identifier: #VU4095

Vulnerability risk: High

CVSSv4.0: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-2935

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: Yes

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 allow a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing AVC header slicing within .swf files. A remote attacker can create a specially crafted. flv file, trick the victim into opening it using Flash Player, cause heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install the latest version of Adobe Flash Player 24.0.0.194.

Vulnerable software versions

Adobe Flash Player: 24.0.0.186

Adobe Flash Player for Linux: 24.0.0.186

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External links
https://helpx.adobe.com/security/products/flash-player/apsb17-02.html
https://bugs.chromium.org/p/project-zero/issues/detail?id=1017

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.