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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:mbed:mbed:5.13.2:*:*:*:*:*:*:*", "matchCriteriaId": "06B7390D-99AA-4F05-AFE7-965AFBD5B8BF", "vulnerable": true}, {"criteria": "cpe:2.3:o:mbed:mbed:5.14.0:*:*:*:*:*:*:*", "matchCriteriaId": "900BC83E-3EE9-4DE7-9187-34530D0AFEC4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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 sn_coap_parser_options_parse() parses CoAP input linearly using a while loop. Once an option is parsed in a loop, the current point (*packet_data_pptr) is increased correspondingly. The pointer is restricted by the size of the received buffer, as well as by the 0xFF delimiter byte. Inside each while loop, the check of the value of *packet_data_pptr is not strictly enforced. 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