CVE-2020-12884

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 sncoapparseroptionsparsemultipleoptions parses CoAP options that may occur multiple consecutive times in a single packet. While processing th...

CVE-2020-12885

An infinite loop 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 sncoapparseroptionsparsemultipleoptions parses CoAP options in a while loop. This loop's exit condition is computed using the previously...

CVE-2020-12885

CVE-2020-12885 affects the CoAP library in Arm Mbed OS 5.15.3. The infinite loop is in the CoAP parser function sn_coap_parser_options_parse_multiple_options() , where the loop exit is based on the previously allocated heap memory for parsed options. If the input heap memory calculation yields ze...

CVE-2020-12886

The CVE affects Arm Mbed OS CoAP library (mbed-coap) in version 5.15.3. The root cause is in sn_coap_parser_options_parse(): the length of the token is read from the message but not validated against the input buffer before accessing the token, enabling a memory access outside the buffer (buffer ...

CVE-2020-12887

Memory leaks were discovered in the CoAP library in Arm Mbed OS 5.15.3 when using the Arm mbed-coap library 5.1.5. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparse parses the CoAP option number field of all options present in the input packet...

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...

ARM Mbed OS CoAP library input validation error vulnerability

ARM Mbed OS is a suite of open source embedded operating systems dedicated to the Internet of Things IoT from ARM in the U.K. The CoAP library is one of the Constrained Application Protocol CoAP libraries. An input validation error vulnerability exists in the CoAP library in Arm Mbed OS version...

CVE-2019-17211

An integer overflow was discovered in the CoAP library in Arm Mbed OS 5.14.0. The function sncoapbuildercalcneededpacketdatasize2 is used to calculate the required memory for the CoAP message from the sncoaphdrs data structure. Both returnedbytecount and srccoapmsgptr-payloadlen are of type...

Integer overflow

An integer overflow was discovered in the CoAP library in Arm Mbed OS 5.14.0. The function sncoapbuildercalcneededpacketdatasize2 is used to calculate the required memory for the CoAP message from the sncoaphdrs data structure. Both returnedbytecount and srccoapmsgptr-payloadlen are of type...

Stack overflow

Buffer overflows were discovered in the CoAP library in Arm Mbed OS 5.14.0. The CoAP parser is responsible for parsing received CoAP packets. The function sncoapparseroptionsparse parses CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point packetdatapptr i...

CVE-2019-17211

An integer overflow was discovered in the CoAP library in Arm Mbed OS 5.14.0. The function sncoapbuildercalcneededpacketdatasize2 is used to calculate the required memory for the CoAP message from the sncoaphdrs data structure. Both returnedbytecount and srccoapmsgptr-payloadlen are of type...

CVE-2019-17211

CVE-2019-17211 affects Arm Mbed OS 5.14.0 CoAP library. The overflow occurs in sn_coap_builder_calc_needed_packet_data_size_2 when computing memory for a CoAP message: returned_byte_count and payload_len are uint16_t and their sum can wrap around, causing insufficient buffer space. Documents conf...

CVE-2019-17212

Arm Mbed OS CoAP library (mbed-coap) version 5.14.0 contains a buffer overflow in the CoAP parser sn_coap_parser_options_parse(), where pointer bounds are not consistently enforced inside loops, enabling heap- or stack-based overflows when processing crafted CoAP packets. The root cause is lack o...

PYSEC-2019-166

The Serialize.deserialize method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library e.g., the standard CoAP server, CoAP client, example collect CoAP server and client when they receive crafted CoAP messages...