cnvd - cnvd-2021-20268

cnvd-2021-20268

Vulnerability from cnvd

Title: ARM Mbed OS拒绝服务漏洞

Description:

ARM Mbed OS是英国ARM公司的一套专用于物联网的开源嵌入式操作系统。CoAP library是其中的一个约束应用协议（CoAP）库。

ARM Mbed OS 5.15.3版本中的CoAP库解析器存在安全漏洞。攻击者可利用该漏洞造成无限循环。

Severity: 高

Patch Name: ARM Mbed OS拒绝服务漏洞的补丁

Patch Description:

ARM Mbed OS是英国ARM公司的一套专用于物联网的开源嵌入式操作系统。CoAP library是其中的一个约束应用协议（CoAP）库。

ARM Mbed OS 5.15.3版本中的CoAP库解析器存在安全漏洞。攻击者可利用该漏洞造成无限循环。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/ARMmbed/mbed-coap/pull/116

Impacted products

Name
ARM ARM Mbed OS 5.15.3

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-12885"
    }
  },
  "description": "ARM Mbed OS\u662f\u82f1\u56fdARM\u516c\u53f8\u7684\u4e00\u5957\u4e13\u7528\u4e8e\u7269\u8054\u7f51\u7684\u5f00\u6e90\u5d4c\u5165\u5f0f\u64cd\u4f5c\u7cfb\u7edf\u3002CoAP library\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7ea6\u675f\u5e94\u7528\u534f\u8bae\uff08CoAP\uff09\u5e93\u3002\n\nARM Mbed OS 5.15.3\u7248\u672c\u4e2d\u7684CoAP\u5e93\u89e3\u6790\u5668\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/ARMmbed/mbed-coap/pull/116",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-20268",
  "openTime": "2021-03-18",
  "patchDescription": "ARM Mbed OS\u662f\u82f1\u56fdARM\u516c\u53f8\u7684\u4e00\u5957\u4e13\u7528\u4e8e\u7269\u8054\u7f51\u7684\u5f00\u6e90\u5d4c\u5165\u5f0f\u64cd\u4f5c\u7cfb\u7edf\u3002CoAP library\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7ea6\u675f\u5e94\u7528\u534f\u8bae\uff08CoAP\uff09\u5e93\u3002\r\n\r\nARM Mbed OS 5.15.3\u7248\u672c\u4e2d\u7684CoAP\u5e93\u89e3\u6790\u5668\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "ARM Mbed OS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "ARM ARM Mbed OS 5.15.3"
  },
  "serverity": "\u9ad8",
  "submitTime": "2020-06-19",
  "title": "ARM Mbed OS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2020-12885 (GCVE-0-2020-12885)

Vulnerability from cvelistv5

Published

2020-06-18 18:24

Modified

2024-08-04 12:11

Severity ?

CWE

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

▼	URL	Tags
	https://github.com/ARMmbed/mbed-os/issues/12929	x_refsource_MISC
	https://github.com/ARMmbed/mbed-coap/pull/116	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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