Vulnerability identifier: #VU6133

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-2009-1493

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

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

Vendor: Adobe

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

The vulnerability exists due to boundary error when processing malicious .pdf files. A remote attacker can trick the victim into opening a specially crafted PDF file that triggers calls to the customDictionaryOpen() JavaScript method with a long string in the second argument, cause memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Mitigation
Update Adobe Reader for Linux and UNIX 7.x to version 7.1.2, 8.x to version 8.1.5, 9.x to version 9.1.1.

Vulnerable software versions

Adobe Reader: 7.0 - 7.1.2, 8.0 - 8.1.5, 9.0 - 9.1.1

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External links
http://www.adobe.com/support/security/advisories/apsa09-02.html
http://www.adobe.com/support/security/bulletins/apsb09-06.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.