In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Bluez | Bluez | * | 5.55 (excluding) |
| Red Hat Enterprise Linux 8 | RedHat | bluez-0:5.52-4.el8 | * |
| Red Hat Enterprise Linux 8 | RedHat | bluez-0:5.52-4.el8 | * |
| Bluez | Ubuntu | bionic | * |
| Bluez | Ubuntu | devel | * |
| Bluez | Ubuntu | esm-infra/xenial | * |
| Bluez | Ubuntu | focal | * |
| Bluez | Ubuntu | groovy | * |
| Bluez | Ubuntu | hirsute | * |
| Bluez | Ubuntu | impish | * |
| Bluez | Ubuntu | jammy | * |
| Bluez | Ubuntu | trusty | * |
| Bluez | Ubuntu | upstream | * |
| Bluez | Ubuntu | xenial | * |