CVE-2021-41229 Information

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.

CVSS Vector

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

Reference

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/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5