A flaw was found in Blender 3.3.0. An interger overflow in source/blender/blendthumb/src/blendthumb_extract.cc may lead to program crash or memory corruption.
https://developer.blender.org/rBb1329d7eaa52a11c73b75d19d20bd8f6d11ac535
https://developer.blender.org/rB32df09b2416a6961704eca0fe73534c8c4e715b2