Is there a method for patching the Stagefright vulnerability on Android 4.3 Touchwiz?

I know I could switch to an AOSP ROM and this would not be an issue, but I can't abide the poorer signal quality. I don't know if Samsung has said whether they'll be issuing a patch for the GS3, but even if they do, we'll need to wait, probably months, for Verizon to pass it on to us. Even when that happens, it will probably come packaged with a locked bootloader, like the 4.4 update. I've already disabled auto-retrieve MMS, but from what I understand, MMS is only one possible attack vector for this vulnerability. So, is there any method available to patch this security hole for those of us who have an unlocked bootloader and are on a Touchwiz 4.3 ROM (I'm on CleanROM 8.2). I've read that it would be possible to write an Xposed module could conceivably do this, but none exists yet.

Hopefully the new Nexus phones will work on Verizon...