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.
oryginał ENCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HContiki Ng
OSContiki-Ng4.4 – 4.5
Powiązane podatności
In Contiki 4.5, TCP ISNs are improperly random.
Contiki-NG is an operating system for Internet of Things devices. An off-by-one error can be triggered in the ...
An out-of-bounds read in the SNMP stack in Contiki-NG 4.4 and earlier allows an attacker to cause a denial of ...
An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. The code for parsing Type A domain ...
Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER en...