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CVE-2018-7456

Published: 24 February 2018

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.)

Priority

Negligible

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
tiff
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(4.0.9-5)
artful Ignored
(end of life)
bionic Not vulnerable
(4.0.9-5)
cosmic Not vulnerable
(4.0.9-5)
disco Not vulnerable
(4.0.9-5)
eoan Not vulnerable
(4.0.9-5)
focal Not vulnerable
(4.0.9-5)
groovy Not vulnerable
(4.0.9-5)
trusty
Released (4.0.3-7ubuntu0.10)
upstream
Released (4.0.9-5)
xenial
Released (4.0.6-1ubuntu0.5)
Patches:
upstream: https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731b

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H