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CVE-2018-17000

libtiff: NULL pointer dereference in function _TIFFmemcmp at tif_unix.c

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Severity

Low

Red Hat Product Security

4.7

CVSS 3.0

Review impact separately from score.

Published · September 13, 2018

Updated · November 22, 2025

Description

A 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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 4.7
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer