In LibTIFF before 4.0.10, there is a denial of service vulnerability in the TIFFOpen function triggered by resource consumption via crafted input files. During the TIFFOpen process, td_imagelength is not checked. The value of td_imagelength can be directly controlled by an input file. In the ChopUpSingleUncompressedStrip function, the _TIFFCheckMalloc function is called based on td_imagelength. If we set the value of td_imagelength close to the amount of system memory, it will hang the system or trigger the OOM killer.
In LibTIFF before 4.0.10, there is a denial of service vulnerability in the TIFFOpen function triggered by resource consumption via crafted input files. During the TIFFOpen process, td_imagelength is not checked. The value of td_imagelength can be directly controlled by an input file. In the ChopUpSingleUncompressedStrip function, the _TIFFCheckMalloc function is called based on td_imagelength. If we set the value of td_imagelength close to the amount of system memory, it will hang the system or trigger the OOM killer.
http://bugzilla.maptools.org/show_bug.cgi?id=2724 https://gitlab.com/libtiff/libtiff/commit/3719385a3fac5cfb20b487619a5f08abbf967cf8 https://gitlab.com/libtiff/libtiff/commit/7a092f8af2568d61993a8cc2e7a35a998d7d37be
Vulmon