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 |
Upstream |
Needs triage
|
| Ubuntu 21.10 (Impish Indri) |
Released
(5.60-0ubuntu2.1)
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(5.56-0ubuntu4.3)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(5.53-0ubuntu3.4)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(5.48-0ubuntu3.6)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Needed
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Ignored
(out of standard support)
|
|
|
Patches: Upstream: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=e79417ed7185b150a056d4eb3a1ab528b91d2fc0 |
||