cnvd - cnvd-2021-90855

cnvd-2021-90855

Vulnerability from cnvd

Title: Amazon FreeRTOS代码问题漏洞

Description:

Amazon FreeRTOS是美国亚马逊（Amazon）公司的一套适用于微控制器的开源操作系统。

Amazon FreeRTOS 中存在代码问题漏洞，该漏洞源于产品未对xportraisprivilege和vPortResetPrivilege内部函数的调用添加有效权限。攻击者可通过该漏洞通过非内核代码调用该函数。

Severity: 高

Patch Name: Amazon FreeRTOS代码问题漏洞的补丁

Patch Description:

Amazon FreeRTOS是美国亚马逊（Amazon）公司的一套适用于微控制器的开源操作系统。

Amazon FreeRTOS 中存在代码问题漏洞，该漏洞源于产品未对xportraisprivilege和vPortResetPrivilege内部函数的调用添加有效权限。攻击者可通过该漏洞通过非内核代码调用该函数。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/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-43997

Impacted products

Name
Amazon FreeRTOS >=10.2.0，<10.4.6

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-43997"
    }
  },
  "description": "Amazon FreeRTOS\u662f\u7f8e\u56fd\u4e9a\u9a6c\u900a\uff08Amazon\uff09\u516c\u53f8\u7684\u4e00\u5957\u9002\u7528\u4e8e\u5fae\u63a7\u5236\u5668\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nAmazon FreeRTOS \u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u672a\u5bf9xportraisprivilege\u548cvPortResetPrivilege\u5185\u90e8\u51fd\u6570\u7684\u8c03\u7528\u6dfb\u52a0\u6709\u6548\u6743\u9650\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u901a\u8fc7\u975e\u5185\u6838\u4ee3\u7801\u8c03\u7528\u8be5\u51fd\u6570\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/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-90855",
  "openTime": "2021-11-25",
  "patchDescription": "Amazon FreeRTOS\u662f\u7f8e\u56fd\u4e9a\u9a6c\u900a\uff08Amazon\uff09\u516c\u53f8\u7684\u4e00\u5957\u9002\u7528\u4e8e\u5fae\u63a7\u5236\u5668\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nAmazon FreeRTOS \u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u672a\u5bf9xportraisprivilege\u548cvPortResetPrivilege\u5185\u90e8\u51fd\u6570\u7684\u8c03\u7528\u6dfb\u52a0\u6709\u6548\u6743\u9650\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u901a\u8fc7\u975e\u5185\u6838\u4ee3\u7801\u8c03\u7528\u8be5\u51fd\u6570\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": "Amazon FreeRTOS\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Amazon FreeRTOS \u003e=10.2.0\uff0c\u003c10.4.6"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-43997",
  "serverity": "\u9ad8",
  "submitTime": "2021-11-22",
  "title": "Amazon FreeRTOS\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2021-43997 (GCVE-0-2021-43997)

Vulnerability from cvelistv5

Published

2021-11-17 00:00

Modified

2024-08-04 04:10

Severity ?

CWE

Summary

FreeRTOS versions 10.2.0 through 10.4.5 do not prevent non-kernel code from calling the xPortRaisePrivilege internal function to raise privilege. FreeRTOS versions through 10.4.6 do not prevent a third party that has already independently gained the ability to execute injected code to achieve further privilege escalation by branching directly inside a FreeRTOS MPU API wrapper function with a manually crafted stack frame. These issues affect ARMv7-M MPU ports, and ARMv8-M ports with MPU support enabled (i.e. configENABLE_MPU set to 1). These are fixed in V10.5.0 and in V10.4.3-LTS Patch 3.

References

▼	URL	Tags
	https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2
	https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6
	https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.5.0
	https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-3

Impacted products

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

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:10:16.905Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.5.0"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-3"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "FreeRTOS versions 10.2.0 through 10.4.5 do not prevent non-kernel code from calling the xPortRaisePrivilege internal function to raise privilege. FreeRTOS versions through 10.4.6 do not prevent a third party that has already independently gained the ability to execute injected code to achieve further privilege escalation by branching directly inside a FreeRTOS MPU API wrapper function with a manually crafted stack frame. These issues affect ARMv7-M MPU ports, and ARMv8-M ports with MPU support enabled (i.e. configENABLE_MPU set to 1). These are fixed in V10.5.0 and in V10.4.3-LTS Patch 3."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-11T00:00:00",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2"
        },
        {
          "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6"
        },
        {
          "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.5.0"
        },
        {
          "url": "https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-3"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-43997",
    "datePublished": "2021-11-17T00:00:00",
    "dateReserved": "2021-11-17T00:00:00",
    "dateUpdated": "2024-08-04T04:10:16.905Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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