For iOS 5.0/5.0.1 Pod 2G, Dev Team and Chronic Dev Team (iOS Jailbreak Dream Team) have developed a free untethered jailbreak solution called Corona, solution through which we could jailbreak all our devices. In a document published Wednesday, Apple describes the iOS vulnerabilities that have been fixed and also for kernel Apple lists a vulnerability that was discovered by a team generically called 2012 iOS Jailbreak Dream Team.
In January the team was named iOS Jailbreak Dream Team by Pod2G in an article published on his blog, Apple took note of the name and credited the people involved in exploiting the vulnerability.
Available for: iPhone 3GS, iPhone 4, iPhone 4S, iPod touch (3rd generation) and later, iPad, iPad 2
Impact: A malicious program could bypass sandbox restrictions
Description: A logic issue existed in the handling of debug system calls. This may allow a malicious program to gain code execution in other programs with the same user privileges.
CVE-2012-0643 : 2012 iOS Jailbreak Dream Team
This is not the first time when Apple credits a hacker exploiting iOS vulnerability, COMEX being the latest example of this.