CVE-2020-27153

Published: 15 October 2020

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.

Priority

Low

CVSS 3 base score: 8.6

Status

Package Release Status
bluez
Launchpad, Ubuntu, Debian
Upstream
Released (5.55-1)
Ubuntu 21.10 (Impish Indri)
Released (5.55-0ubuntu1)
Ubuntu 21.04 (Hirsute Hippo)
Released (5.55-0ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (5.53-0ubuntu3.2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.48-0ubuntu3.5)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (5.37-0ubuntu5.3+esm1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721a