CVE-2019-7663

Name	CVE-2019-7663
Description	An Invalid Address dereference was discovered in TIFFWriteDirectoryTagTransferfunction in libtiff/tif_dirwrite.c in LibTIFF 4.0.10, affecting the cpSeparateBufToContigBuf function in tiffcp.c. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted tiff file. This is different from CVE-2018-12900.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-1680-1, DSA-4670-1
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tiff (PTS)	stretch (security), stretch	4.0.8-2+deb9u5	fixed
	buster, buster (security)	4.1.0+git191117-2~deb10u1	fixed
	bullseye, sid	4.2.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
tiff	source	jessie	4.0.3-12.3+deb8u8	DLA-1680-1
tiff	source	stretch	4.0.8-2+deb9u5	DSA-4670-1
tiff	source	(unstable)	4.0.10-4
tiff3	source	(unstable)	(unfixed)

Notes

http://bugzilla.maptools.org/show_bug.cgi?id=2833
Fixed by: https://gitlab.com/libtiff/libtiff/commit/802d3cbf3043be5dce5317e140ccb1c17a6a2d39
Same patch as CVE-2018-17000 but different issue. As well different
issue than CVE-2018-12900.