PT-2018-14473 · Foolabs+1 · Xpdf+1

Fish · Published 2018-10-18 · Updated 2018-11-30 · CVE-2018-18459

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xpdf version 4.00

Description The issue allows remote attackers to cause a denial of service via a crafted pdf file. This is due to a NULL pointer dereference in the DCTStream::getBlock function in Stream.cc.

Recommendations For Xpdf version 4.00, consider avoiding the use of the DCTStream::getBlock function until a patch is available. As a temporary workaround, restrict the processing of crafted pdf files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2018-18459

Affected Products

Debian

Xpdf

References · 9

• 🔥 https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm · Exploit
• https://cve.org/CVERecord?id=CVE-2018-18459 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-18459 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-18459 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-18459 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-18459 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-18459 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-18459 · Vendor Advisory
• https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217 · Note