CVE-2021-41229 (GCVE-0-2021-41229)
Vulnerability from cvelistv5
Published
2021-11-12 00:00
Modified
2025-11-04 16:09
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Summary
BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates and will not be freed. This will cause a memory leak over time. The data can be a very large object, which can be caused by an attacker continuously sending sdp packets and this may cause the service of the target device to crash.
Impacted products
Vendor Product Version
bluez bluez Version: = 5.58
Create a notification for this product.
Show details on NVD website


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  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2025-11-04T16:09:18.907Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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            ],
            "url": "https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq"
          },
          {
            "name": "[debian-lts-announce] 20211127 [SECURITY] [DLA 2827-1] bluez security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html"
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            "url": "https://security.netapp.com/advisory/ntap-20211203-0004/"
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            "name": "[debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security update",
            "tags": [
              "mailing-list",
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            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "bluez",
          "vendor": "bluez",
          "versions": [
            {
              "status": "affected",
              "version": "= 5.58"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates and will not be freed. This will cause a memory leak over time. The data can be a very large object, which can be caused by an attacker continuously sending sdp packets and this may cause the service of the target device to crash."
        }
      ],
      "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": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-24T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq"
        },
        {
          "name": "[debian-lts-announce] 20211127 [SECURITY] [DLA 2827-1] bluez security update",
          "tags": [
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        },
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        },
        {
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          "tags": [
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        }
      ],
      "source": {
        "advisory": "GHSA-3fqg-r8j5-f5xq",
        "discovery": "UNKNOWN"
      },
      "title": "Memory leak in BlueZ"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-41229",
    "datePublished": "2021-11-12T00:00:00.000Z",
    "dateReserved": "2021-09-15T00:00:00.000Z",
    "dateUpdated": "2025-11-04T16:09:18.907Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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