CVE-2019-18178

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Real Time Engineers FreeRTOS+FAT 160919a has a use after free. The function FF_Close() is defined in ff_file.c. The file handler pxFile is freed by ffconfigFREE, which (by default) is a macro definition of vPortFree(), but it is reused to flush modified file content from the cache to disk by the function FF_FlushCache().

Real Time Engineers FreeRTOS+FAT versión 160919a, presenta un uso de la memoria previamente liberada. La función FF_Close() es definida en el archivo ff_file.c. El manejador de archivos pxFile es liberado por ffconfigFREE, que (por defecto) es una definición macro de la función vPortFree(), pero es reusada para vaciar el contenido del archivo modificado desde la memoria caché hacia el disco por la función FF_FlushCache().

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-10-17 CVE Reserved
2019-11-04 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-416: Use After Free

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://sourceforge.net/p/freertos/bugs/199	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
Amazon Search vendor "Amazon"		Freertos\+fat Search vendor "Amazon" for product "Freertos\+fat"				160919a Search vendor "Amazon" for product "Freertos\+fat" and version "160919a"		-		Affected