Vulnerability identifier: #VU1391

Vulnerability 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-2009-4324

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Adobe Reader
Client/Desktop applications / Office applications
Adobe Acrobat
Client/Desktop applications / Office applications

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 in the Doc.media.newPlayer method in Multimedia.api. A remote attacker can create a specially crafted .pdf file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system with privileges of the current user.

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

Note: the vulnerability was being actively exploited.

Mitigation
Update Adobe Reader and Adobe Acrobat 8.1.7 or earlier to version 8.2.
Update Adobe Reader and Adobe Acrobat 9.2 or earlier to version 9.3.

http://get.adobe.com/reader
http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows
http://www.adobe.com/support/downloads/product.jsp?product=158&platform=Windows
http://www.adobe.com/support/downloads/product.jsp?product=112&platform=Windows
http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Macintosh

Vulnerable software versions

Adobe Reader: 8.0 - 8.1.7, 9.0 - 9.2

Adobe Acrobat: 8.0 - 8.1.7, 9.0 - 9.2

---

External links
http://www.adobe.com/support/security/advisories/apsa09-07.html
http://www.adobe.com/support/security/bulletins/apsb10-02.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.