CVE-2018-18651 — MEDIUM (5.5)

Vulnerability 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 Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Xpdfreader	Xpdf	4.00

Related Weaknesses (CWE)

CWE-834

References

https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747ExploitThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/152005Third Party Advisory
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747ExploitThird Party Advisory

FAQ

What is CVE-2018-18651?

CVE-2018-18651 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 pdfto...

How severe is CVE-2018-18651?

CVE-2018-18651 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-18651?

Check the references section above for vendor advisories and patch information. Affected products include: Xpdfreader Xpdf.