gifread.c in gif2png, as used in OptiPNG before 0.7.6, allows remote attackers to cause a denial of service (uninitialized memory read) via a crafted GIF file.Referenceshttp://optipng.sourceforge.net/history.txthttp://www.ubuntu.com/usn/USN-2951-1https://sourceforge.net/p/optipng/bugs/53/
