CVE-2019-9183

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame.

Se descubrió un problema en Contiki-NG a través de 4.3 y Contiki a través de 3.0. Existe un desbordamiento del búfer debido a un desbordamiento de enteros durante el procesamiento de fragmentos 6LoWPAN frente a fragmentos truncados en os / net / ipv6 / sicslowpan.c. Esto da como resultado accesos de memoria no asignada, que bloquea la aplicación. Un atacante puede causar una denegación de servicio a través de un marco 6LoWPAN especialmente diseñado.

*Credits: N/A

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

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-02-26 CVE Reserved
2020-04-23 CVE Published
2024-02-26 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-191: Integer Underflow (Wrap or Wraparound)
CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4	Release Notes
https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf	Technical Description

URL	Date	SRC

URL	Date	SRC
https://github.com/contiki-ng/contiki-ng/pull/972	2021-07-21

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Contiki-ng Search vendor "Contiki-ng"		Contiki-ng Search vendor "Contiki-ng" for product "Contiki-ng"				<= 4.3 Search vendor "Contiki-ng" for product "Contiki-ng" and version " <= 4.3"		-		Affected
Contiki-os Search vendor "Contiki-os"		Contiki Search vendor "Contiki-os" for product "Contiki"				<= 3.0 Search vendor "Contiki-os" for product "Contiki" and version " <= 3.0"		-		Affected