Vulnerability-Lookup

CNVD-2021-95619

Vulnerability from cnvd - Published: 2021-12-09

Title

Zephyr资源管理错误漏洞

Description

Zephyr是一套开源的小型的可缩放的实时操作系统。 Zephyr 2.4.0及更高版本，2.5.0及更高版本存在资源管理错误漏洞，该漏洞源于在无效ATT请求导致冻结后立即断开L2CAP通道。目前没有详细漏洞细节提供。

Severity

中

Patch Name

Zephyr资源管理错误漏洞的补丁

Patch Description

Zephyr是一套开源的小型的可缩放的实时操作系统。 Zephyr 2.4.0及更高版本，2.5.0及更高版本存在资源管理错误漏洞，该漏洞源于在无效ATT请求导致冻结后立即断开L2CAP通道。目前没有详细漏洞细节提供。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-7g38-3x9v-v7vp

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-3455

Impacted products

Name
['Zephyr Zephyr >=2.4.0', 'Zephyr Zephyr >=2.5.0']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3455"
    }
  },
  "description": "Zephyr\u662f\u4e00\u5957\u5f00\u6e90\u7684\u5c0f\u578b\u7684\u53ef\u7f29\u653e\u7684\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nZephyr 2.4.0\u53ca\u66f4\u9ad8\u7248\u672c\uff0c2.5.0\u53ca\u66f4\u9ad8\u7248\u672c\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u65e0\u6548ATT\u8bf7\u6c42\u5bfc\u81f4\u51bb\u7ed3\u540e\u7acb\u5373\u65ad\u5f00L2CAP\u901a\u9053\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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-7g38-3x9v-v7vp",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-95619",
  "openTime": "2021-12-09",
  "patchDescription": "Zephyr\u662f\u4e00\u5957\u5f00\u6e90\u7684\u5c0f\u578b\u7684\u53ef\u7f29\u653e\u7684\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nZephyr 2.4.0\u53ca\u66f4\u9ad8\u7248\u672c\uff0c2.5.0\u53ca\u66f4\u9ad8\u7248\u672c\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u65e0\u6548ATT\u8bf7\u6c42\u5bfc\u81f4\u51bb\u7ed3\u540e\u7acb\u5373\u65ad\u5f00L2CAP\u901a\u9053\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Zephyr Zephyr \u003e=2.4.0",
      "Zephyr Zephyr \u003e=2.5.0"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-3455",
  "serverity": "\u4e2d",
  "submitTime": "2021-10-21",
  "title": "Zephyr\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-3455 (GCVE-0-2021-3455)

Vulnerability from cvelistv5 – Published: 2021-10-19 22:25 – Updated: 2024-09-16 18:38

Title

Disconnecting L2CAP channel right after invalid ATT request leads freeze

Summary

Disconnecting L2CAP channel right after invalid ATT request leads freeze. Zephyr versions >= 2.4.0, >= 2.5.0 contain Use After Free (CWE-416). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp

Severity

4.3 (Medium)


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

CWE

CWE-416 - Use After Free (CWE-416)

Assigner

zephyr

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
zephyrproject-rtos	zephyr	Affected: 2.4.0 , < unspecified (custom) Affected: 2.5.0 , < unspecified (custom)

Date Public

2021-06-19 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:53:17.699Z",
          "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-7g38-3x9v-v7vp"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "zephyr",
          "vendor": "zephyrproject-rtos",
          "versions": [
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "2.4.0",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "2.5.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-06-19T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Disconnecting L2CAP channel right after invalid ATT request leads freeze. Zephyr versions \u003e= 2.4.0, \u003e= 2.5.0 contain Use After Free (CWE-416). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "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:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "cweId": "CWE-416",
              "description": "Use After Free (CWE-416)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-19T22:25:09.000Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "shortName": "zephyr"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp"
        }
      ],
      "source": {
        "defect": [
          "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp"
        ]
      },
      "title": "Disconnecting L2CAP channel right after invalid ATT request leads freeze",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vulnerabilities@zephyrproject.org",
          "DATE_PUBLIC": "2021-06-19T00:00:00.000Z",
          "ID": "CVE-2021-3455",
          "STATE": "PUBLIC",
          "TITLE": "Disconnecting L2CAP channel right after invalid ATT request leads freeze"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "zephyr",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003e=",
                            "version_value": "2.4.0"
                          },
                          {
                            "version_affected": "\u003e=",
                            "version_value": "2.5.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "zephyrproject-rtos"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "environmentalScore": 4.3,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 4.3,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
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            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Use After Free (CWE-416)"
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        },
        "references": {
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            {
              "name": "http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp",
              "refsource": "MISC",
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            }
          ]
        },
        "source": {
          "defect": [
            "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp"
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
    "assignerShortName": "zephyr",
    "cveId": "CVE-2021-3455",
    "datePublished": "2021-10-19T22:25:09.479Z",
    "dateReserved": "2021-03-19T00:00:00.000Z",
    "dateUpdated": "2024-09-16T18:38:53.853Z",
    "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-2021-95619

CVE-2021-3455 (GCVE-0-2021-3455)

Tags

Sightings

Nomenclature