This update for tiff fixes the following issues: Security issues fixed: - CVE-2018-12900: Fixed heap-based buffer overflow in the cpSeparateBufToContigBuf . - CVE-2018-18661: Fixed NULL pointer dereference in the function LZWDecode in the file tif_lzw.c . - CVE-2018-18557: Fixed JBIG decode can lead to out-of-bounds write . Non-security issues fixed: - asan_build: build ASAN included - debug_build: build more suitable for debugging