CVE-2018-18020

Severity Score

3.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.

En QPDF 8.2.1, en libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject y QPDFWriter::unparseChild tienen llamadas recursivas durante mucho tiempo, lo que permite que atacantes remotos provoquen una denegación de servicio (DoS) mediante un archivo PDF manipulado.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-10-06 CVE Reserved
2018-10-06 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-09-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-674: Uncontrolled Recursion

CAPEC

References (2)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html	Mailing List

URL	Date	SRC
https://github.com/qpdf/qpdf/issues/243	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qpdf Project Search vendor "Qpdf Project"		Qpdf Search vendor "Qpdf Project" for product "Qpdf"				8.2.1 Search vendor "Qpdf Project" for product "Qpdf" and version "8.2.1"		-		Affected