I recently took pictures of a lightning storm using my camera phone (Samsung Galaxy S3). In several of the shots where I managed to capture lightning, a lighter (brighter?) vertical section sometimes appeared, as in the picture below;
I took some photos using my wifes camera phone (iphone 5) and was able to reproduce similar results. The location of the brighter line was not consistent, and only happened when actual lightning was captured.
What is this called, how can I avoid it, and how can I (as an amateur non Photoshop/gimp user) correct it so that the photo is uniform, now that its done?