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CVE-2021-41229

Published: 12 November 2021

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.

Priority

Low

CVSS 3 base score: 6.5

Status

Package Release Status
bluez
Launchpad, Ubuntu, Debian
bionic
Released (5.48-0ubuntu3.6)
focal
Released (5.53-0ubuntu3.4)
hirsute
Released (5.56-0ubuntu4.3)
impish
Released (5.60-0ubuntu2.1)
jammy
Released (5.62-0ubuntu2)
trusty Ignored
(out of standard support)
upstream Needs triage

xenial Needed

Patches:
upstream: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=e79417ed7185b150a056d4eb3a1ab528b91d2fc0