CVE-2020-14934

Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP agent. The function parsing the received SNMP request does not verify the input message's requested variables against the capacity of the internal SNMP engine buffer. If the number of variables in the request exceeds the allocated buffer, a memory write out of the buffer boundaries occurs. This write operation provides a possibility to overwrite other variables allocated in the .bss section by the application. Because the sender of the frame is in control of the content that will be written beyond the buffer limits, and there is no strict process memory separation, this issue may allow overwriting of sensitive memory areas of an IoT device.
Configurations

Configuration 1 (hide)

cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-08-18 17:15

Updated : 2024-02-04 21:00


NVD link : CVE-2020-14934

Mitre link : CVE-2020-14934

CVE.ORG link : CVE-2020-14934


JSON object : View

Products Affected

contiki-ng

  • contiki-ng
CWE
CWE-787

Out-of-bounds Write