CVE-2018-17000

NameCVE-2018-17000
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1680-1
NVD severitymedium
Debian Bugs908778

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tiff (PTS)jessie4.0.3-12.3+deb8u5vulnerable
jessie (security)4.0.3-12.3+deb8u10fixed
stretch (security), stretch4.0.8-2+deb9u4vulnerable
buster4.0.10-4fixed
bullseye, sid4.1.0+git191117-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tiffsource(unstable)4.0.10-4908778
tiffsourcejessie4.0.3-12.3+deb8u8DLA-1680-1
tiff3source(unstable)(unfixed)

Notes

[stretch] - tiff <postponed> (Minor issue)
http://bugzilla.maptools.org/show_bug.cgi?id=2811
Relates to http://bugzilla.maptools.org/show_bug.cgi?id=2833
Fixed by: https://gitlab.com/libtiff/libtiff/commit/802d3cbf3043be5dce5317e140ccb1c17a6a2d39

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