Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2021-41229 Details

Description

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

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq	CVE	ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html	CVE	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html	CVE	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html	CVE
https://security.netapp.com/advisory/ntap-20211203-0004/	CVE	Third Party Advisory
https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq	[email protected]	ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html	[email protected]	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html	[email protected]	Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20211203-0004/	[email protected]	Third Party Advisory

see all 9 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-401	Missing Release of Memory after Effective Lifetime	[email protected]
CWE-400	Uncontrolled Resource Consumption	[email protected]

Affected Products

Product	Versions
bluez bluez	5.58
CPE cpe:2.3:a:bluez:bluez:5.58:::::::* Remediation No remediation found in references.
debian debian linux	9.0 10.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* cpe:2.3:o:debian:debian_linux:10.0:::::::* Remediation No remediation found in references.

Change History

12 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 4, 2025	CVE Modified	CVE
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2022	Modified Analysis	[email protected]
Oct 24, 2022	CVE Modified	[email protected]
Apr 25, 2022	Reanalysis	[email protected]
Dec 10, 2021	Modified Analysis	[email protected]
Dec 3, 2021	CVE Modified	[email protected]
Nov 29, 2021	Modified Analysis	[email protected]
Nov 27, 2021	CVE Modified	[email protected]
Nov 17, 2021	Initial Analysis	[email protected]