This "security issue" is akin to calling BURGLERS-R-US and telling them your house is ready to be burglarized, then letting them in by breaking your own lock.
If a user has to install specific software and run it in a specific way to jailbreak their device, I don't call it "patching a security issue", sorry.
Do you even understand how jailbreak exploits work? They do so by EXPLOITING a vulnerability in security to gain root access. If you want more control, go Android.