{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-41229", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "dateUpdated": "2025-11-04T16:09:18.907Z", "dateReserved": "2021-09-15T00:00:00.000Z", "datePublished": "2021-11-12T00:00:00.000Z"}, "containers": {"cna": {"title": "Memory leak in BlueZ", "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2022-10-24T00:00:00.000Z"}, "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."}], "affected": [{"vendor": "bluez", "product": "bluez", "versions": [{"version": "= 5.58", "status": "affected"}]}], "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": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html"}, {"url": "https://security.netapp.com/advisory/ntap-20211203-0004/"}, {"name": "[debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "cweId": "CWE-400"}]}], "source": {"advisory": "GHSA-3fqg-r8j5-f5xq", "discovery": "UNKNOWN"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq", "tags": ["x_transferred"]}, {"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"}, {"url": "https://security.netapp.com/advisory/ntap-20211203-0004/", "tags": ["x_transferred"]}, {"name": "[debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-04T16:09:18.907Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:bluez:bluez:5.58:*:*:*:*:*:*:*", "matchCriteriaId": "FAC3D39C-463E-43DD-A4F9-1957F4183606", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}, {"lang": "es", "value": "BlueZ es una pila de protocolos Bluetooth para Linux. En las versiones afectadas se presenta una vulnerabilidad en la funci\u00f3n sdp_cstate_alloc_buf que asigna memoria que siempre quedar\u00e1 colgada en la lista enlazada de cstates y no ser\u00e1 liberada. Esto causar\u00e1 una p\u00e9rdida de memoria con el tiempo. Los datos pueden ser un objeto muy grande, lo que puede ser causado por un atacante que env\u00eda continuamente paquetes sdp y esto puede causar el bloqueo del servicio del dispositivo de destino"}], "id": "CVE-2021-41229", "lastModified": "2025-11-04T16:15:44.420", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 3.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "[email protected]", "type": "Secondary"}, {"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2021-11-12T23:15:08.857", "references": [{"source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq"}, {"source": "[email protected]", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html"}, {"source": "[email protected]", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html"}, {"source": "[email protected]", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20211203-0004/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20211203-0004/"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "[email protected]", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "[email protected]", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2022:2081", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "bluez-0:5.56-3.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-05-10T00:00:00Z"}, {"advisory": "RHSA-2022:2081", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "bluez-0:5.56-3.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-05-10T00:00:00Z"}], "bugzilla": {"description": "bluez: memory leak in the SDP protocol", "id": "2025034", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2025034"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "verified"}, "cwe": "(CWE-400|CWE-401)", "details": ["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."], "name": "CVE-2021-41229", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "bluez", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "bluez", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "bluez", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-11-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-41229\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-41229"], "threat_severity": "Low"}