CVE-2018-18458 — MEDIUM (5.5)

Vulnerability Description

The function DCTStream::decodeImage in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.

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-476

References

https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217Third Party Advisory
https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppmThird Party Advisory
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217Third Party Advisory
https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppmThird Party Advisory

FAQ

What is CVE-2018-18458?

CVE-2018-18458 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The function DCTStream::decodeImage in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.

How severe is CVE-2018-18458?

CVE-2018-18458 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-2018-18458?

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