// For flags

CVE-2022-36052

Out-of-bounds read when decompressing UDP header

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The 6LoWPAN implementation in Contiki-NG may cast a UDP header structure at a certain offset in a packet buffer. The code does not check whether the packet buffer is large enough to fit a full UDP header structure from the offset where the casting is made. Hence, it is possible to cause an out-of-bounds read beyond the packet buffer. The problem affects anyone running devices with Contiki-NG versions previous to 4.8, and which may receive 6LoWPAN packets from external parties. The problem has been patched in Contiki-NG version 4.8.

Contiki-NG es un sistema operativo de código abierto y multiplataforma para dispositivos IoT de Próxima Generación. La implementación de 6LoWPAN en Contiki-NG puede lanzar una estructura de encabezado UDP en un determinado desplazamiento en un búfer de paquetes. El código no comprueba si el búfer de paquetes es lo suficientemente grande como para que quepa una estructura de encabezado UDP completa a partir del desplazamiento en el que es realizado el casting. Por lo tanto, es posible causar una lectura fuera de límites más allá del buffer de paquetes. El problema afecta a cualquiera que ejecute dispositivos con Contiki-NG versiones anteriores a 4.8, y que puedan recibir paquetes 6LoWPAN de partes externas. El problema ha sido parcheado en Contiki-NG versión 4.8

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-07-15 CVE Reserved
  • 2022-09-01 CVE Published
  • 2024-03-24 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
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"
 < 4.8
Search vendor "Contiki-ng" for product "Contiki-ng" and version " < 4.8"
-
Affected