CVE-2018-18456

SUSE Security Advisory - SUSE-SU-2023:4187-1

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The function Object::isName() in Object.h (called from Gfx::opSetFillColorN) in Xpdf 4.00 allows remote attackers to cause a denial of service (stack-based buffer over-read) via a crafted pdf file, as demonstrated by pdftoppm.

La función Object::isName() en Object.h (llamado desde Gfx::opSetFillColorN) en Xpdf 4.00 permite que atacantes remotos provoquen una denegación de servicio (sobrelectura de búfer basada en pila) mediante un archivo pdf manipulado, como ha sido demostrado por pdftoppm.

This update for poppler fixes the following issues. Fixed an out-of-bounds read vulnerability in the function SplashXPath:strokeAdjust. Fixed a stack-based buffer over-read via a crafted pdf file. Fixed heap-based buffer over-read) via a crafted pdf file. Fixed a stack bugger overflow in FoFiType1C:cvtGlyph.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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

2018-10-18 CVE Reserved
2018-10-18 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (2)

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

URL	Date	SRC

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
Xpdfreader Search vendor "Xpdfreader"		Xpdf Search vendor "Xpdfreader" for product "Xpdf"				4.00 Search vendor "Xpdfreader" for product "Xpdf" and version "4.00"		-		Affected