PublicDateAtUSN: 2018-02-24
Candidate: CVE-2018-7456
PublicDate: 2018-02-24 06:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7456
 https://github.com/xiaoqx/pocs/tree/master/libtiff
 https://ubuntu.com/security/notices/USN-3864-1
Description:
 A NULL Pointer Dereference occurs in the function TIFFPrintDirectory in
 tif_print.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4,
 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4,
 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 when using the tiffinfo
 tool to print crafted TIFF information, a different vulnerability than
 CVE-2017-18013. (This affects an earlier part of the TIFFPrintDirectory
 function that was not addressed by the CVE-2017-18013 patch.)
Ubuntu-Description:
Notes:
Bugs:
 http://bugzilla.maptools.org/show_bug.cgi?id=2778
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891288
Priority: negligible
Discovered-by:
Assigned-to: mdeslaur
CVSS:
 nvd: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H [6.5 MEDIUM]


Patches_tiff:
 upstream: https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731b
upstream_tiff: released (4.0.9-5)
precise/esm_tiff: ignored (end of ESM support, was needed)
trusty_tiff: released (4.0.3-7ubuntu0.10)
trusty/esm_tiff: released (4.0.3-7ubuntu0.10)
xenial_tiff: released (4.0.6-1ubuntu0.5)
esm-infra/xenial_tiff: released (4.0.6-1ubuntu0.5)
artful_tiff: ignored (reached end-of-life)
bionic_tiff: not-affected (4.0.9-5)
cosmic_tiff: not-affected (4.0.9-5)
disco_tiff: not-affected (4.0.9-5)
eoan_tiff: not-affected (4.0.9-5)
focal_tiff: not-affected (4.0.9-5)
groovy_tiff: not-affected (4.0.9-5)
hirsute_tiff: not-affected (4.0.9-5)
devel_tiff: not-affected (4.0.9-5)