CVE-2018-17000 Information

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 Vector

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

Reference

http://bugzilla.maptools.org/show_bug.cgi?id=2811 http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html http://www.securityfocus.com/bid/105342 https://lists.debian.org/debian-lts-announce/2019/02/msg00026.html https://usn.ubuntu.com/3906-1/ https://www.debian.org/security/2020/dsa-4670

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5