CVE Vulnerabilities

CVE-2018-9918

Uncontrolled Recursion

Published: Apr 10, 2018 | Modified: Oct 03, 2019
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

libqpdf.a in QPDF through 8.0.2 mishandles certain expected dictionary key but found non-name object cases, allowing remote attackers to cause a denial of service (stack exhaustion), related to the QPDFObjectHandle and QPDF_Dictionary classes, because nesting in direct objects is not restricted.

Weakness

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

Affected Software

Name Vendor Start Version End Version
Qpdf Qpdf_project * 8.0.2 (including)

Potential Mitigations

References