CVE-2017-11613 Information

Description

In LibTIFF 4.0.8 there is a denial of service vulnerability in the TIFFOpen function. A crafted input will lead to a denial of service attack. During the TIFFOpen process td_imagelength is not checked. The value of td_imagelength can be directly controlled by an input file. In the ChopUpSingleUncompressedStrip function the _TIFFCheckMalloc function is called based on td_imagelength. If we set the value of td_imagelength close to the amount of system memory it will hang the system or trigger the OOM killer.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/99977 https://gist.github.com/dazhouzhou/1a3b7400547f23fe316db303ab9b604f https://lists.debian.org/debian-lts-announce/2018/05/msg00022.html https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html https://usn.ubuntu.com/3606-1/ https://www.debian.org/security/2018/dsa-4349

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