Remote Yes

Type Denial of service

Description

There is a reachable assertion abort in the function TIFFWriteDirectorySec() in LibTIFF before 4.0.9, related to tif_dirwrite.c and a SubIFD tag. A crafted input will lead to a remote denial of service attack.

AVG-815 lib32-libtiff 4.0.8-1 4.0.9-1 Medium Fixed

AVG-814 libtiff 4.0.8-1 4.0.9-1 Medium Fixed

http://bugzilla.maptools.org/show_bug.cgi?id=2727
https://gitlab.com/libtiff/libtiff/commit/4958e19faedbda5da699a61009e6c774884d6f8a