CVE-2018-7456
Medium
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.)
SeverityMedium
CVSS6.5
Exploit probability—
Product
Libtiff
PublishedFeb 24, 2018
First seenFeb 24, 2018
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libtiff libtiff | 4.0.9 | — |
| debian debian_linux | 7.0, 8.0, 9.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 18.10 | — |
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