iOS 7 jailbreaking tool, evasi0n7, was updated to version 1.0.7 to fix a problem where the bundled package list would not be updated by Cydia. If affected, you will need to restore your iOS device to iOS 7.0.6 and re-jailbreak with the latest evasi0n 7. This can be a pain in the ass but, obviously the update can’t be released for the affected devices via an evasi0n package update in Cydia, since they aren’t getting package updates.
How do you know if you’re affected? A quick way to check if you’re affected: search for a recently-released package (like SSLPatch) in Cydia. If you can find it, you’re good.
If you need a tutorial to walk you through the jailbreaking process, check out our previous post which also contains links to download evasi0n7 v1.0.7.