qt: Malformed PPM image causing division by zero and crash in qppmhandler.cpp

An issue was discovered in Qt 5.11. A malformed PPM image causes a division by zero and a crash in qppmhandler.cpp...

UBUNTU-CVE-2018-10114

An issue was discovered in GEGL through 0.3.32. The geglbufferiteratereadsimple function in buffer/gegl-buffer-access.c allows remote attackers to cause a denial of service write access violation or possibly have unspecified other impact via a malformed PPM file, related to improper restrictions ...