CVE-2018-18651 Information

Description

An issue was discovered in Xpdf 4.00. catalog-getNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file.

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/152005 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