MGASA-2018-0180

In LibTIFF 4.0.8, there is a denial of service vulnerability in the TIFFOpen function. A crafted input will lead to a denial of service attack. During the TIFFOpen process, tdimagelength is not checked. The value of tdimagelength can be directly controlled by an input file. In the ChopUpSingleUncompressedStrip function, the TIFFCheckMalloc function is called based on tdimagelength. 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. (CVE-2017-11613)

In LibTIFF 4.0.9, there is an uncontrolled resource consumption in the TIFFSetDirectory function of tif_dir.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file. This occurs because the declared number of directory entries is not validated against the actual number of directory entries. (CVE-2018-5784)