It was found that the gdk-pixbuf GIF image loader routine gdk_pixbuf__gif_image_load() did not properly handle certain return values from its subroutines. A remote attacker could provide a specially-crafted GIF image, which, once opened in Pidgin, would lead gdk-pixbuf to return a partially initialized pixbuf structure. Using this structure, possibly containing a huge width and height, could lead to the application being terminated due to excessive memory use.
Vendor Status:
Pidgin had issued an update for this vulnerability