CVE-2021-41229
bluetooth: BlueZ is a Bluetooth protocol stack for Linux
CVE-2021-41229 is fixed in 14 products on 1 platform, first by bluetooth 5.53-0ubuntu3.4, released November 12, 2021. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.5
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0118
67th percentile
BlueZ is a Bluetooth protocol stack for Linux. In affected versions avulnerability exists in sdp_cstate_alloc_buf which allocates memory whichwill always be hung in the singly linked list of cstates and will not befreed. This will cause a memory leak over time. The data can be a verylarge object, which can be caused by an attacker continuously sending sdppackets and this may cause the service of the target device to crash.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bluetooth · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.6 | bluetooth 5.48-0ubuntu3.6 | Nov 29, 2021 |
| bluetooth · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.4 | bluetooth 5.53-0ubuntu3.4 | Nov 12, 2021 |
| bluetooth · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | bluetooth 5.62-0ubuntu2 | Nov 12, 2021 |
| bluetooth · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluetooth 5.62-0ubuntu2 | Jan 16, 2026 |
| bluetooth · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluetooth 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez · Debian 12.15 (bookworm) | 5.62-2 | DEBIAN-CVE-2021-41229 | Nov 12, 2021 |
| bluez · Debian 13.5 (trixie) | 5.62-2 | DEBIAN-CVE-2021-41229 | Nov 12, 2021 |
| bluez · Debian 14 | 5.62-2 | DEBIAN-CVE-2021-41229 | Nov 12, 2021 |
| bluez · RHEL 8 | 0:5.56-3.el8 | RHSA-2022:2081 | May 10, 2022 |
| bluez · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.6 | bluez 5.48-0ubuntu3.6 | Nov 29, 2021 |
| bluez · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.4 | bluez 5.53-0ubuntu3.4 | Nov 12, 2021 |
| bluez · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | bluez 5.62-0ubuntu2 | Nov 12, 2021 |
| bluez · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez · almalinux 8 | 5.56-3.el8 | ALSA-2022:2081 | May 10, 2022 |
| bluez · ol 8 | 0:5.56-3.el8 | ELSA-2022-2081 | May 17, 2022 |
| bluez · rocky 8 | 0:5.56-3.el8 | RLSA-2022:2081 | May 10, 2022 |
| bluez-cups · RHEL 8 | 0:5.56-3.el8 | RHSA-2022:2081 | May 10, 2022 |
| bluez-cups · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.6 | bluez-cups 5.48-0ubuntu3.6 | Nov 29, 2021 |
| bluez-cups · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.4 | bluez-cups 5.53-0ubuntu3.4 | Nov 12, 2021 |
| bluez-cups · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | bluez-cups 5.62-0ubuntu2 | Nov 12, 2021 |
| bluez-cups · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez-cups 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-cups · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez-cups 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-cups · almalinux 8 | 5.56-3.el8 | ALSA-2022:2081 | May 10, 2022 |
| bluez-cups · ol 8 | 0:5.56-3.el8 | ELSA-2022-2081 | May 17, 2022 |
| bluez-hcidump · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.6 | bluez-hcidump 5.48-0ubuntu3.6 | Nov 29, 2021 |
| bluez-hcidump · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.4 | bluez-hcidump 5.53-0ubuntu3.4 | Nov 12, 2021 |
| bluez-hcidump · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | bluez-hcidump 5.62-0ubuntu2 | Nov 12, 2021 |
| bluez-hcidump · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez-hcidump 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-hcidump · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez-hcidump 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-hid2hci · RHEL 8 | 0:5.56-3.el8 | RHSA-2022:2081 | May 10, 2022 |
| bluez-hid2hci · almalinux 8 | 5.56-3.el8 | ALSA-2022:2081 | May 10, 2022 |
| bluez-hid2hci · ol 8 | 0:5.56-3.el8 | ELSA-2022-2081 | May 17, 2022 |
| bluez-libs · RHEL 8 | 0:5.56-3.el8 | RHSA-2022:2081 | May 10, 2022 |
| bluez-libs · almalinux 8 | 5.56-3.el8 | ALSA-2022:2081 | May 10, 2022 |
| bluez-libs · ol 8 | 0:5.56-3.el8 | ELSA-2022-2081 | May 17, 2022 |
| bluez-libs-devel · RHEL 8 | 0:5.56-3.el8 | RHSA-2022:2081 | May 10, 2022 |
| bluez-libs-devel · almalinux 8 | 5.56-3.el8 | ALSA-2022:2081 | May 10, 2022 |
| bluez-libs-devel · ol 8 | 0:5.56-3.el8 | ELSA-2022-2081 | May 17, 2022 |
| bluez-meshd · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | bluez-meshd 5.62-0ubuntu2 | Nov 12, 2021 |
| bluez-meshd · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez-meshd 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-meshd · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez-meshd 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-obexd · RHEL 8 | 0:5.56-3.el8 | RHSA-2022:2081 | May 10, 2022 |
| bluez-obexd · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.6 | bluez-obexd 5.48-0ubuntu3.6 | Nov 29, 2021 |
| bluez-obexd · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.4 | bluez-obexd 5.53-0ubuntu3.4 | Nov 12, 2021 |
| bluez-obexd · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | bluez-obexd 5.62-0ubuntu2 | Nov 12, 2021 |
| bluez-obexd · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez-obexd 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-obexd · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez-obexd 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-obexd · almalinux 8 | 5.56-3.el8 | ALSA-2022:2081 | May 10, 2022 |
| bluez-obexd · ol 8 | 0:5.56-3.el8 | ELSA-2022-2081 | May 17, 2022 |
| bluez-source · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez-source 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-source · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez-source 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-test-scripts · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez-test-scripts 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-test-scripts · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez-test-scripts 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-test-tools · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | bluez-test-tools 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-test-tools · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | bluez-test-tools 5.62-0ubuntu2 | Jan 16, 2026 |
| bluez-tests · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.6 | bluez-tests 5.48-0ubuntu3.6 | Nov 29, 2021 |
| bluez-tests · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.4 | bluez-tests 5.53-0ubuntu3.4 | Nov 12, 2021 |
| bluez-tests · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | bluez-tests 5.62-0ubuntu2 | Nov 12, 2021 |
| libbluetooth3 · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.6 | libbluetooth3 5.48-0ubuntu3.6 | Nov 29, 2021 |
| libbluetooth3 · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.4 | libbluetooth3 5.53-0ubuntu3.4 | Nov 12, 2021 |
| libbluetooth3 · Ubuntu 22.04.1 LTS (jammy) | 5.62-0ubuntu2 | libbluetooth3 5.62-0ubuntu2 | Nov 12, 2021 |
| libbluetooth3 · Ubuntu 24.10 (oracular) | 5.62-0ubuntu2 | libbluetooth3 5.62-0ubuntu2 | Jan 16, 2026 |
| libbluetooth3 · Ubuntu 25.04 (plucky) | 5.62-0ubuntu2 | libbluetooth3 5.62-0ubuntu2 | Jan 16, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.