Vulnerability-Lookup

CNVD-2021-95622

Vulnerability from cnvd - Published: 2021-12-09

Title

Zephyr空指针解引用漏洞（CNVD-2021-95622）

Description

Zephyr是用于互联、资源受限的嵌入式设备的小型实时操作系统。 Zephyr 2.4.0及更高版本存在空指针解引用漏洞，攻击者可通过发送畸形IEEE 802154片段利用该漏洞导致拒绝服务。

Severity

低

Patch Name

Zephyr空指针解引用漏洞（CNVD-2021-95622）的补丁

Patch Description

Zephyr是用于互联、资源受限的嵌入式设备的小型实时操作系统。 Zephyr 2.4.0及更高版本存在空指针解引用漏洞，攻击者可通过发送畸形IEEE 802154片段利用该漏洞导致拒绝服务。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

厂商已发布了漏洞修复程序，请及时关注更新： http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-3322

Impacted products

Name
Zephyr Zephyr >=2.4.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3322",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-3322"
    }
  },
  "description": "Zephyr\u662f\u7528\u4e8e\u4e92\u8054\u3001\u8d44\u6e90\u53d7\u9650\u7684\u5d4c\u5165\u5f0f\u8bbe\u5907\u7684\u5c0f\u578b\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nZephyr 2.4.0\u53ca\u66f4\u9ad8\u7248\u672c\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7578\u5f62IEEE 802154\u7247\u6bb5\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttp://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-95622",
  "openTime": "2021-12-09",
  "patchDescription": "Zephyr\u662f\u7528\u4e8e\u4e92\u8054\u3001\u8d44\u6e90\u53d7\u9650\u7684\u5d4c\u5165\u5f0f\u8bbe\u5907\u7684\u5c0f\u578b\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nZephyr 2.4.0\u53ca\u66f4\u9ad8\u7248\u672c\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7578\u5f62IEEE 802154\u7247\u6bb5\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "Zephyr\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2021-95622\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Zephyr Zephyr \u003e=2.4.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-3322",
  "serverity": "\u4f4e",
  "submitTime": "2021-10-13",
  "title": "Zephyr\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2021-95622\uff09"
}

CVE-2021-3322 (GCVE-0-2021-3322)

Vulnerability from cvelistv5 – Published: 2021-10-12 21:50 – Updated: 2024-09-16 18:45

Title

Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr

Summary

Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-476 - NULL Pointer Dereference (CWE-476)

Assigner

zephyr

References

URL

Tags

http://github.com/zephyrproject-rtos/zephyr/secur…

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	zephyrproject-rtos	zephyr	Affected: >=2.4.0 , < unspecified (custom)

Date Public ?

2021-04-21 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:53:17.355Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "zephyr",
          "vendor": "zephyrproject-rtos",
          "versions": [
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "\u003e=2.4.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-04-21T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
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              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-12T21:50:14.000Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "shortName": "zephyr"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"
        }
      ],
      "source": {
        "defect": [
          "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3"
        ]
      },
      "title": "Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vulnerabilities@zephyrproject.org",
          "DATE_PUBLIC": "2021-04-21T00:00:00.000Z",
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          "STATE": "PUBLIC",
          "TITLE": "Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr"
        },
        "affects": {
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              {
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                      "version": {
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                          {
                            "version_affected": "\u003e=",
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                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "zephyrproject-rtos"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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        },
        "impact": {
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            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
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            "baseScore": 6.5,
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            "environmentalScore": 6.5,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 6.5,
            "userInteraction": "NONE",
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              "refsource": "MISC",
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    "assignerShortName": "zephyr",
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    "datePublished": "2021-10-12T21:50:14.638Z",
    "dateReserved": "2021-01-27T00:00:00.000Z",
    "dateUpdated": "2024-09-16T18:45:16.535Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2021-95622

CVE-2021-3322 (GCVE-0-2021-3322)

Tags

Sightings

Nomenclature