CVE-2021-41229 (GCVE-0-2021-41229)
Vulnerability from cvelistv5
Published
2021-11-12 00:00
Modified
2025-11-04 16:09
Severity ?
VLAI Severity ?
EPSS score ?
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.
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-04T16:09:18.907Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
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"references": [
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"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"
},
{
"tags": [
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"url": "https://security.netapp.com/advisory/ntap-20211203-0004/"
},
{
"name": "[debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security update",
"tags": [
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"x_transferred"
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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"
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"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": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html"
},
{
"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",
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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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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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