Softpedia – (International) One billion users affected by Java security sandbox bypass vulnerability, experts say. Researchers from Security Explorations claimed to identify a flaw that affects all Oracle Java SE versions and the billions of devices on which the software is currently installed. This bug, codenamed issue 50, was identified just before the start of Oracle’s JavaOne 2012 conference. The impact of this issue is critical we were able to successfully exploit it and achieve a complete Java security sandbox bypass in the environment of Java SE 5, 6 and 7, the CEO of Security Explorations said. He said the vulnerability can be leveraged by an attacker to violate a fundamental security constraint of Java Virtual Machines. The researchers confirmed Java SE 5 — Update 22, Java SE 6 — Update 35, and Java SE 7 Update 7 running on fully patched Windows 7 32-bit operating systems are susceptible to the attack. The affected Web browsers are Safari 5.1.7, Opera 12.02, Chrome 21.0.1180.89, Firefox 15.0.1, and Internet Explorer 9.0.8112.16421. The company provided Oracle with a complete technical description of the flaw, along with source and binary codes, and a proof-of-concept that demonstrates the complete security sandbox bypass in Java SE 5, 6, and 7.