In LibTIFF 4.0.7, a memory leak vulnerability was found in the function OJPEGReadHeaderInfoSecTablesQTable in tif_ojpeg.c, which allows attackers to cause a denial of service via a crafted file.

LibTIFF 4.0.7 has an invalid read in the _TIFFVGetField function in tif_dir.c, which might allow remote attackers to cause a denial of service (crash) via a crafted TIFF file.

In LibTIFF 4.0.6 and possibly other versions, the program processes BMP images without verifying that biWidth and biHeight in the bitmap-information header match the actual input, as demonstrated by a heap-based buffer over-read in bmp2tiff. NOTE: mentioning bmp2tiff does not imply that the activation point is in the bmp2tiff.c file (which was removed before the 4.0.7 release).

The TIFFWriteDirectoryTagCheckedRational function in tif_dirwrite.c in LibTIFF 4.0.6 allows remote attackers to cause a denial of service (assertion failure and application exit) via a crafted TIFF file.

LibTIFF 4.0.7 has a signed integer overflow, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image.

tif_dirread.c in LibTIFF 4.0.7 has an "outside the range of representable values of type float" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image.

tif_read.c in LibTIFF 4.0.7 does not ensure that tif_rawdata is properly initialized, which might allow remote attackers to obtain sensitive information from process memory via a crafted image.

The JPEGSetupEncode function in tiff_jpeg.c in LibTIFF 4.0.7 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted image.

LibTIFF 4.0.7 has an "outside the range of representable values of type float" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image.

LibTIFF 4.0.7 has a "shift exponent too large for 64-bit type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image.