ARM Mbed OS CoAP library buffer overflow vulnerability (CNVD-2021-20266)

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. A buffer overflow vulnerability exists in the CoAP library in ARM Mbed OS version 5.15.3. A...

ARM Mbed OS Denial of Service 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. A security vulnerability exists in the CoAP library parser in ARM Mbed OS version 5.15.3. A...

ARM Mbed OS CoAP library input validation error vulnerability (CNVD-2021-20270)

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...

ARM Mbed OS CoAP library buffer overflow vulnerability (CNVD-2021-20269)

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. A buffer overflow vulnerability exists in the CoAP library in ARM Mbed OS version 5.15.3. A...

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

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-2020-12886

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

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-2020-12885

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

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-2020-12883

Buffer over-reads were 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 CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point packetdatapptr ...

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-2020-12883

Buffer over-reads were 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 CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point packetdatapptr ...

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...

Integer overflow

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...

Buffer overflow

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...

Heap overflow

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...

Out-of-bounds

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...

Heap overflow

Buffer over-reads were 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 CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point packetdatapptr ...

CVE-2020-12883

CVE-2020-12883 affects the CoAP library in ARM Mbed OS 5.15.3. The vulnerability arises in sn_coap_parser_options_parse(), which parses CoAP input linearly but fails to verify the input length against bytes read when processing extended option delta/length, and computes message_left incorrectly f...