Vulnerabilities > CVE-2020-12141 - Out-of-bounds Read vulnerability in Contiki-Ng

CVSS 9.1 - CRITICAL

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

HIGH

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

contiki-ng

CWE-125

critical

NVD

Published: 2021-10-19

Updated: 2021-10-22

Summary

An out-of-bounds read in the SNMP stack in Contiki-NG 4.4 and earlier allows an attacker to cause a denial of service and potentially disclose information via crafted SNMP packets to snmp_ber_decode_string_len_buffer in os/net/app-layer/snmp/snmp-ber.c.

Vulnerable Configurations

Part	Description	Count
OS	Contiki-Ng Contiki NG Contiki NG - Contiki NG Contiki NG 2.0 Contiki NG Contiki NG 2.1 Contiki NG Contiki NG 2.2 Contiki NG Contiki NG 2.2.1 Contiki NG Contiki NG 2.2.2 Contiki NG Contiki NG 2.2.3 Contiki NG Contiki NG 2.3 Contiki NG Contiki NG 2.4 Contiki NG Contiki NG 2.5 Contiki NG Contiki NG 2.6 Contiki NG Contiki NG 2.7 Contiki NG Contiki NG 3.0 Contiki NG Contiki NG 4.0 Contiki NG Contiki NG 4.1 Contiki NG Contiki NG 4.2 Contiki NG Contiki NG 4.3 Contiki NG Contiki NG 4.4	19

Common Weakness Enumeration (CWE)

CWE-125 - Out-of-bounds Read

Common Attack Pattern Enumeration and Classification (CAPEC)

Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

References