CVE-2018-18650 — MEDIUM (5.5)

Vulnerability 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 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-190

References

https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747ExploitThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/152006Third Party Advisory
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747ExploitThird Party Advisory

FAQ

What is CVE-2018-18650?

CVE-2018-18650 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 pdft...

How severe is CVE-2018-18650?

CVE-2018-18650 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-2018-18650?

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