CVE-2021-43400
bluetooth: An issue was discovered in gatt-database.c in BlueZ 5.61
CVE-2021-43400 is fixed in 7 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
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0166
76th percentile
An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.
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 |
| 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-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-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-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-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 |
| 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 |
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