medium4.3
CVE-2021-41229
BlueZ is a Bluetooth protocol stack for Linux.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Bluez | Bluez | Version 5.58 |
| Debian | Debian Linux | Versions 9.0, 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq
- https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html
- https://security.netapp.com/advisory/ntap-20211203-0004/
- https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq
- https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html
- https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html
- https://security.netapp.com/advisory/ntap-20211203-0004/