A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c (called from TIFFWriteDirectoryTagTransferfunction) in LibTIFF 4.0.9 allows an attacker to cause a denial-of-service through a crafted tiff file. This vulnerability can be triggered by the executable tiffcp.
The product dereferences a pointer that it expects to be valid but is NULL.
Link | Tags |
---|---|
http://bugzilla.maptools.org/show_bug.cgi?id=2811 | issue tracking exploit third party advisory |
http://www.securityfocus.com/bid/105342 | vdb entry third party advisory |
https://usn.ubuntu.com/3906-1/ | third party advisory vendor advisory |
https://lists.debian.org/debian-lts-announce/2019/02/msg00026.html | third party advisory mailing list |
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html | vendor advisory |
https://www.debian.org/security/2020/dsa-4670 | vendor advisory |