Another untethered vulnerability found for iOS 4.2.1

iPhone hacker pod2g, the hacker who discovered SHAtter jailbreak exploit and the untethered jailbreak for iOS 4.2.1, has discovered a new jailbreak vulnerability in iOS which can be used on iOS 4.2.1 and 4.3 as well. 

Hey, another untethered vulnerability found ! :-)
Since greenpois0n untethered jailbreak for iOS 4.2.1 won't support iOS 4.3, this new vulnerability will support iOS 4.3 and bring untethered jailbreak once iOS 4.3 is released to public. [Source:Twitter]