CVE-2021-41229

medium

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.

References

https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq

https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html

https://security.netapp.com/advisory/ntap-20211203-0004/

Details

Source: MITRE

Published: 2021-11-12

Updated: 2022-04-25

Type: CWE-401

Risk Information

CVSS v2

Base Score: 3.3

Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 6.5

Severity: LOW

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM