VUPEN Security Research - Oracle Java Font Processing Glyph Element Memory Corruption Vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2012-10-25T00:00:00


VUPEN Security Research - Oracle Java Font Processing Glyph Element Memory Corruption Vulnerability

Website :

Twitter :


Java is a programming language and computing platform released by Sun Microsystems (now Oracle). It is the underlying technology that powers state-of-the-art programs including utilities, games, and business applications.


VUPEN Vulnerability Research Team discovered a critical vulnerability in Oracle Java.

The vulnerability is caused by a memory corruption error within the "t2k.dll" component when processing certain glyph elements within a Font file, which could be exploited by remote attackers to compromise a vulnerable system via a specially crafted web page.

CVSS Score: 10 (AV:N/AC:L/Au:N/C:C/I:C/A:C)


Oracle Java JRE 7u7 and prior Oracle Java JDK 7u7 and prior

IV. Binary Analysis & Exploits/PoCs

In-depth technical analysis of the vulnerability and a fully functional remote code execution exploit or PoC are available through the VUPEN BAE (Binary Analysis & Exploits) portal:

VUPEN Binary Analysis & Exploits Service provides private exploits and in-depth technical analysis of the most significant public vulnerabilities based on disassembly, reverse engineering, protocol analysis, and code audit.

The service allows governments and major corporations to evaluate risks, and protect infrastructures and assets against new threats. The service also allows security vendors (IPS, IDS, AntiVirus) to supplement their internal research efforts and quickly develop both vulnerability-based and exploit-based signatures to proactively protect their customers from attacks and emerging threats.

V. VUPEN Threat Protection Program

Governments and major corporations which are members of the VUPEN Threat Protection Program (TPP) have been proactively alerted about the vulnerability when it was discovered by VUPEN in advance of its public disclosure, and have received a detailed attack detection guidance to protect national and critical infrastructures against potential 0-day attacks exploiting this vulnerability:


Upgrade to Oracle Java 7u9 or later


This vulnerability was discovered by Matthieu Bonetti of VUPEN Security


VUPEN is the leadering provider of advanced vulnerability research for defensive and offensive cyber security. VUPEN solutions enable corporations and governments to measure and manage risks, eliminate vulnerabilities before they can be exploited, and protect critical infrastructures and assets against known and unknown vulnerabilities.

VUPEN has been recognized as "Company of the Year 2011 in the Vulnerability Research Market" by Frost & Sullivan.

VUPEN solutions include:

  • VUPEN Binary Analysis & Exploits Service (BAE) :

  • VUPEN Threat Protection Program (TPP) :


-- Chaouki Bekrar - VUPEN CEO & Head of Research Email: Phone: +33 434 883 580 Fax: +33 434 883 581 X. DISCLOSURE TIMELINE ----------------------------- 2012-09-26 - Vulnerability Discovered by VUPEN 2012-10-16 - Public disclosure