tiff: integer overflow leading to heap-based buffer overflow in tif_getimage.c (CVE-2019-17546)

tif_getimage.c in LibTIFF through 4.0.10, as used in GDAL through 3.0.1 and other products, has an integer overflow that potentially causes a heap-based buffer overflow via a crafted RGBA image, related to a "Negative-size-param" condition.

References:

https://nvd.nist.gov/vuln/detail/CVE-2019-17546

Patch:

https://gitlab.com/libtiff/libtiff/commit/4bb584a35f87af42d6cf09d15e9ce8909a839145

Affected branches:

• master
• 3.10-stable
• 3.9-stable
• 3.8-stable
• 3.7-stable