CVE-2019-1787

Clam AntiVirus PDF Denial of Service 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 prior 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 a heap buffer 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 PDF (Portable Document Format) en las versiones de software 0.101.1 y anteriores de Clam AntiVirus (ClamAV), podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad se debe a la falta de mecanismos adecuados para el manejo de datos dentro del búfer del dispositivo, mientras se indexan los datos de archivo restantes en un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad enviando archivos PDF creados a un dispositivo afectado. Una explotación exitosa podría permitir al atacante causar una condición de lectura de búfer fuera de límites, resultando en un cierre inesperado que podría causar 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
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-08-29 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (5)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2019/04/msg00019.html	Mailing List

URL	Date	SRC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12181	2024-08-04

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00062.html	2023-03-01
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00064.html	2023-03-01
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"				<= 0.101.1 Search vendor "Clamav" for product "Clamav" and version " <= 0.101.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.0 Search vendor "Opensuse" for product "Leap" and version "15.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.3 Search vendor "Opensuse" for product "Leap" and version "42.3"		-		Affected