Threats affecting pkg:github/fltk

FLTK versions up to 1.4.5 have an integer overflow vulnerability in the Fl_BMP_Image::load_bmp_() function. This flaw causes the application to allocate an undersized pixel buffer based on file-supplied width and height values. An attacker can exploit this by providing a crafted BMP or ICO file with large dimensions, leading to heap buffer overflow and corruption of the application heap.

FLTK versions up to and including 1.4.5 have a stack-based buffer overflow vulnerability in the Fl_BMP_Image::load_bmp_() function. This flaw occurs when processing BMP or ICO files with a colors_used field value exceeding 256, which overflows a 768-byte colormap array. Exploitation can lead to application crashes or potentially allow code execution.