CVE-2019-1786

Clam AntiVirus PDF Out-of-Bounds Read Vulnerability

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and 0.101.0 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of proper data handling mechanisms within the device buffer while indexing remaining file data on an affected device. An attacker could exploit this vulnerability by sending crafted PDF files to an affected device. A successful exploit could allow the attacker to cause an out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

Una vulnerabilidad en la funcionalidad de escaneo del Formato de Documento Portátil (PDF) de las versiones 0.101.1 y 0.101.0 del software Clam AntiVirus (ClamAV), podría permitir que un atacante remoto no autenticado cause una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad es debido a la falta de mecanismos apropiados de manejo de datos dentro del búfer del dispositivo cuando se indexan los datos de archivo restantes en un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad mediante el envío archivos PDF creados a un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar una condición de lectura fuera de límites, resultando en un bloqueo que podría generar una condición de denegación de servicio en un dispositivo afectado.

*Credits: N/A

CVSS Scores

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

Low

Privileges Required

None

User Interaction

None

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

2018-12-06 CVE Reserved
2019-03-27 CVE Published
2024-04-01 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-125: Out-of-bounds Read

CAPEC

References (3)

URL	Tag	Source
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12149	Issue Tracking
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12168	Issue Tracking

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/201904-12	2023-03-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Clamav Search vendor "Clamav"		Clamav Search vendor "Clamav" for product "Clamav"				0.101.0 Search vendor "Clamav" for product "Clamav" and version "0.101.0"		-		Affected
Clamav Search vendor "Clamav"		Clamav Search vendor "Clamav" for product "Clamav"				0.101.1 Search vendor "Clamav" for product "Clamav" and version "0.101.1"		-		Affected