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.
The product does not properly control the allocation and maintenance of a limited resource.
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
| Link | Tags |
|---|---|
| https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq | third party advisory exploit |
| https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html | third party advisory mailing list |
| https://security.netapp.com/advisory/ntap-20211203-0004/ | third party advisory |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html | third party advisory mailing list |