CVE-2020-12886

A buffer over-read was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparse parses the CoAP packet header starting from the message token. The length of the token in the received message is...

CVE-2020-12887

CVE-2020-12887 concerns memory leak in the Arm Mbed OS CoAP library: when using mbed-coap 5.1.5, the sn_coap_parser_options_parse() function parses option numbers by summing previous option numbers and deltas, with 16-bit integers and no overflow checks. This can cause a crafted packet to wrap an...