// For flags

CVE-2020-24336

 

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. The code for parsing Type A domain name answers in ip64-dns64.c doesn't verify whether the address in the answer's length is sane. Therefore, when copying an address of an arbitrary length, a buffer overflow can occur. This bug can be exploited whenever NAT64 is enabled.

Se detectó un problema en Contiki versiones hasta 3.0 y Contiki-NG versiones hasta 4.5. El código para analizar las respuestas de nombre de dominio Tipo A en el archivo ip64-dns64.c no verifica si la dirección en la longitud de la respuesta es sana. Por lo tanto, cuando se copia una dirección de una longitud arbitraria, puede producirse un desbordamiento de búfer. Este error puede ser explotado siempre que NAT64 esté habilitado

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-08-13 CVE Reserved
  • 2020-12-11 CVE Published
  • 2023-08-27 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (2)
URL Tag Source
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 Third Party Advisory
https://www.kb.cert.org/vuls/id/815128 Third Party Advisory
URL Date SRC
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
Contiki-ng
Search vendor "Contiki-ng"
 Contiki-ng
Search vendor "Contiki-ng" for product "Contiki-ng"
 <= 4.5
Search vendor "Contiki-ng" for product "Contiki-ng" and version " <= 4.5"
-
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