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 integer overflow, leading to heap-based buffer overflow was found in the way portable pixmap format (PPM) image file format handler of GEGL, a graph based image processing framework, processed certain input PPM image file headers. A remote attacker could provide a specially-crafted PPM image that when opened in gegl executable would lead to crash, or, potentially arbitrary code execution with the privileges of the user running the binary.

This issue was found by Murray McAllister, Red Hat Security Response Team.

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.

An integer overflow, leading to heap-based buffer overflow was found in the way portable pixmap format (PPM) image file format handler of GEGL, a graph based image processing framework, processed certain input PPM image file headers. A remote attacker could provide a specially-crafted PPM image that when opened in gegl executable would lead to crash, or, potentially arbitrary code execution with the privileges of the user running the binary.

This issue was found by Murray McAllister, Red Hat Security Response Team.