loadcache in GEGL before 0.4.34 allows shell expansion when a pathname in a constructed command line is not escaped or filtered. This is caused by use of the system library function for execution of the ImageMagick convert fallback in magick-load. NOTE: GEGL releases before 0.4.34 are used in GIMP releases before 2.10.30; however, this does not imply that GIMP builds enable the vulnerable feature.

An issue was discovered in GEGL through 0.3.32. The gegltilebackendswapconstructed function in buffer/gegl-tile-backend-swap.c allows remote attackers to cause a denial of service (write access violation) or possibly have unspecified other impact via a malformed PNG file that is mishandled during a call to the bablformatgetbytesperpixel function in babl-format.c in babl 0.1.46.

An issue was discovered in GEGL through 0.3.32. The process function in operations/external/ppm-load.c has unbounded memory allocation, leading to a denial of service (application crash) upon allocation failure.

An issue was discovered in GEGL through 0.3.32. The renderrectangle function in process/gegl-processor.c has unbounded memory allocation, leading to a denial of service (application crash) upon allocation failure.

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 on memory allocation in the ppmloadreadheader function in operations/external/ppm-load.c.