CVE-2018-18650 Information

Description

An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory.

CVSS Vector

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

Reference

https://exchange.xforce.ibmcloud.com/vulnerabilities/152006 https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747p41747

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

5.5