FKIE_CVE-2020-12885

Vulnerability from fkie_nvd - Published: 2020-06-18 19:15 - Updated: 2024-11-21 05:00
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 sn_coap_parser_options_parse_multiple_options() parses CoAP options in a while loop. This loop's exit condition is computed using the previously allocated heap memory required for storing the result of parsing multiple options. If the input heap memory calculation results in zero bytes, the loop exit condition is never met and the loop is not terminated. As a result, the packet parsing function never exits, leading to resource consumption.
References
cve@mitre.orghttps://github.com/ARMmbed/mbed-coap/pull/116Third Party Advisory
cve@mitre.orghttps://github.com/ARMmbed/mbed-os/issues/12929Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/ARMmbed/mbed-coap/pull/116Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/ARMmbed/mbed-os/issues/12929Third Party Advisory
Impacted products
Vendor Product Version
arm mbed_os 5.15.3
To clipboard 

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      "lang": "en",
      "value": "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 sn_coap_parser_options_parse_multiple_options() parses CoAP options in a while loop. This loop\u0027s exit condition is computed using the previously allocated heap memory required for storing the result of parsing multiple options. If the input heap memory calculation results in zero bytes, the loop exit condition is never met and the loop is not terminated. As a result, the packet parsing function never exits, leading to resource consumption."
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      "lang": "es",
      "value": "Se detect\u00f3 un bucle infinito en la biblioteca CoAP en Arm Mbed OS versi\u00f3n 5.15.3. El analizador CoAP es responsable de analizar los paquetes CoAP recibidos. La funci\u00f3n sn_coap_parser_options_parse_multiple_options() analiza las opciones de CoAP en un bucle while. La condici\u00f3n de salida de este bucle se calcula usando la memoria de la pila asignada previamente requerida para almacenar el resultado de analizar m\u00faltiples opciones. Si el c\u00e1lculo de la memoria de la pila de entrada resulta en cero bytes, la condici\u00f3n de salida del bucle nunca se cumple y el bucle no es finalizado. Como resultado, la funci\u00f3n de an\u00e1lisis de paquetes nunca se cierra, conllevando al consumo de recursos"
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  ],
  "id": "CVE-2020-12885",
  "lastModified": "2024-11-21T05:00:29.437",
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          "accessVector": "NETWORK",
          "authentication": "NONE",
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          "baseScore": 7.5,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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  "vulnStatus": "Modified",
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          "lang": "en",
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