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CVE-2021-41229
MEDIUM4.3
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.
CVE Details
CVSS v3.1 Score4.3
SeverityMEDIUM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack VectorADJACENT_NETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
Published11/12/2021
Last Modified11/4/2025
Sourcenvd
Honeypot Sightings0
Affected Products
bluez:bluezdebian:debian_linux
Weaknesses (CWE)
CWE-400CWE-401
References
https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq(security-advisories@github.com)
https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html(security-advisories@github.com)
https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html(security-advisories@github.com)
https://security.netapp.com/advisory/ntap-20211203-0004/(security-advisories@github.com)
https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html(af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html(af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20211203-0004/(af854a3a-2127-422b-91ae-364da2661108)
IOC Correlations
No correlations recorded
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