An issue was discovered in GEGL through 0.3.32. The gegl_tile_backend_swap_constructed 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 babl_format_get_bytes_per_pixel function in babl-format.c in babl 0.1.46.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://bugzilla.gnome.org/show_bug.cgi?id=795249 | issue tracking |
| https://github.com/xiaoqx/pocs/tree/master/gegl | exploit vendor advisory |