JLSEC-2026-949 ImageMagick has Division-by-Zero in YUV sampling factor validation, which leads to crash

A logic error in YUV sampling factor validation allows an invalid sampling factor to bypass checks and trigger a division-by-zero during image loading, resulting in a reliable denial-of-service. coders/yuv.c:210:47: runtime error: division by zero AddressSanitizer:DEADLYSIGNAL...

UBUNTU-CVE-2016-9535

tifpredict.h and tifpredict.c in libtiff 4.0.6 have assertions that can lead to assertion failures in debug mode, or buffer overflows in release mode, when dealing with unusual tile size like YCbCr with subsampling. Reported as MSVR 35105, aka "Predictor heap-buffer-overflow."...