CVE-2020-6113

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An exploitable vulnerability exists in the object stream parsing functionality of Nitro Software, Inc.’s Nitro Pro 13.13.2.242 when updating its cross-reference table. When processing an object stream from a PDF document, the application will perform a calculation in order to allocate memory for the list of indirect objects. Due to an error when calculating this size, an integer overflow may occur which can result in an undersized buffer being allocated. Later when initializing this buffer, the application can write outside its bounds which can cause a memory corruption that can lead to code execution. A specially crafted document can be delivered to a victim in order to trigger this vulnerability.

Se presenta una vulnerabilidad explotable en la funcionalidad object stream parsing de Nitro Pro de Nitro Software, Inc versión 13.13.2.242 cuando actualiza su tabla de referencias cruzadas. Cuando procesan un flujo de objetos de un documento PDF, la aplicación realizará un cálculo para asignar memoria para la lista de objetos indirectos. Debido a un error cuando se calcula este tamaño, puede ocurrir un desbordamiento de enteros que puede resultar en la asignación de un búfer de tamaño insuficiente. Más tarde, al inicializar este búfer, la aplicación puede escribir fuera de sus límites, que puede causar una corrupción de la memoria conllevando a la ejecución de código. Un documento especialmente diseñado puede ser entregado a una víctima a fin de activar esta vulnerabilidad

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-07 CVE Reserved
2020-09-17 CVE Published
2023-06-03 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-131: Incorrect Calculation of Buffer Size
CWE-190: Integer Overflow or Wraparound
CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1063	2024-08-04

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
Gonitro Search vendor "Gonitro"		Nitro Pro Search vendor "Gonitro" for product "Nitro Pro"				13.13.2.242 Search vendor "Gonitro" for product "Nitro Pro" and version "13.13.2.242"		-		Affected
Gonitro Search vendor "Gonitro"		Nitro Pro Search vendor "Gonitro" for product "Nitro Pro"				13.16.2.300 Search vendor "Gonitro" for product "Nitro Pro" and version "13.16.2.300"		-		Affected