Bluez · Bluez · CVE-2020-27153
**Name of the Vulnerable Software and Affected Versions**
BlueZ versions prior to 5.55
**Description**
The issue is related to a double free error in the gatttool disconnect cb() routine from shared/att.c, caused by a redundant disconnect MGMT event. This could allow a remote attacker to potentially cause a denial of service or code execution during service discovery, leading to unauthorized access to confidential data, disruption of data integrity, and service disruption.
**Recommendations**
For versions prior to 5.55, update to version 5.55 or later to resolve the issue.
As a temporary workaround, consider restricting service discovery to minimize the risk of exploitation.