Related Vulnerabilities: CVE-2021-41229  

In BlueZ, 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.

Severity Medium

Remote Yes

Type Denial of service

Description

In BlueZ, 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.

AVG-2553 bluez 5.62-1 Medium Vulnerable

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