Vulnerability identifier: #VU1337

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2007-4768

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Acrobat
Client/Desktop applications / Office applications
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 weakness exists due to heap-based buffer overflow in Perl-Compatible Regular Expression (PCRE) library when handling of a single Unicode sequence by multiple character classes. A remote attacker can create a specially data, 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.

Mitigation
Install update from vendor's website:

Adobe Reader 7 and 8:
https://www.adobe.com/products/acrobat/readstep2.html
Adobe Acrobat for Windows:
https://www.adobe.com/support/downloads/detail.jsp?ftpID=3849
Adobe Acrobat for Macintosh:
https://www.adobe.com/support/downloads/detail.jsp?ftpID=3856
Adobe Acrobat 3D version:
https://www.adobe.com/support/downloads/detail.jsp?ftpID=3850
Adobe Reader 7:
https://www.adobe.com/go/getreader
Adobe Acrobat 7 for Windows:
https://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows
Adobe Acrobat 7 for Macintosh:
https://www.adobe.com/support/downloads/product.jsp?product=1&platform=Macintosh

Vulnerable software versions

Adobe Acrobat: 8.x, 7.x

Adobe Reader: 8.1.1 - 8.x

---

External links
http://www.adobe.com/support/security/bulletins/apsb08-13.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?

No. We are not aware of malware exploiting this vulnerability.