sam2p 0.49.3 vulnerabilities

In sam2p version 0.49.3, there is an integer signedness error in the in_xpm_reader function in in_xpm.cpp, leading to a crash when writing to an out-of-bounds array element.

In sam2p version 0.49.3, there is an invalid read of size 2 in the parse_rgb function in in_xpm.cpp. This can also cause a write to an illegal address.

Due to an integer overflow in sam2p 0.49.3, a loop executes 0xffffffff times, ending with an invalid read of size 1 in the Image::Indexed::sortPal function in image.cpp. This also causes memory corruption due to an attempted write to the invalid d[0xfffffffe] array element.

In sam2p version 0.49.3, there is an integer signedness error in the pcxLoadRaster function in in_pcx.cpp, leading to a heap-based buffer overflow.

In sam2p version 0.49.3, an integer overflow exists in the pcxLoadImage24 function of the file in_pcx.cpp, leading to an invalid write operation.

In version 0.49.3 of sam2p, a heap-based buffer overflow exists in the pcxLoadImage24 function of the file in_pcx.cpp.