CVE-2020-27153

Summary:

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.

Reference Links(if available):

https://bugzilla.redhat.com/show_bug.cgi?id=1884817

https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07

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

https://lists.debian.org/debian-lts-announce/2020/10/msg00022.html

https://security.gentoo.org/glsa/202011-01

CVSS Score (if available)

v2: / MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:P

v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Links to Exploits(if available)