Integer overflow in IrfanView 4.23, when the resampling or screen fitting option is enabled, allows remote attackers to execute arbitrary code via a crafted TIFF 1 BPP image, which triggers a heap-based buffer overflow.
Improper Control of Generation of Code The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.