CVE-2026-42170 Gimp: gimp dds plug-in heap-based buffer overflow via bpp mismatch in load_layer() (ddsread.c)

A heap-based buffer overflow vulnerability exists in the GIMP DDS DirectDraw Surface file parser. When a crafted DDS file declares a D3D9 pixel format but sets a lower bits-per-pixel bpp value in the header, the loader allocates an undersized heap buffer. Subsequent pixel data consumption at the...