Vulnerabilities > CVE-2021-41229 - Memory Leak vulnerability in multiple products

Summary

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.

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

References