Description
In BlueZ 5.42, a buffer over-read was identified in "l2cap_packet" function in "monitor/packet.c" source file. This issue can be triggered by processing a corrupted dump file and will result in btmon crash.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bluez | No fix yet | — |
| Debian 13 | bluez | No fix yet | — |
| Debian 12 | bluez | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | bluez | No fix yet | — |
| Ubuntu 26.04 LTS | bluez | No fix yet | — |
| Ubuntu 25.10 | bluez | No fix yet | — |
| Ubuntu 24.04 LTS | bluez | No fix yet | — |
| Ubuntu 22.04 LTS | bluez | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | bluez | No fix yet | — |
| Ubuntu Pro 18.04 LTS | bluez | No fix yet | — |
| Ubuntu Pro 16.04 LTS | bluez | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | bluez | 5.48-5.16.1 | SUSE-SU-2019:1353-2 |
| SLES 15 | bluez | 5.48-5.16.1 | SUSE-SU-2019:1353-1 |
| SLES 12 SP4 | bluez | 5.13-5.12.1 | SUSE-SU-2019:1339-1 |
| SLES 12 SP3 | bluez | 5.13-5.12.1 | SUSE-SU-2019:1339-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | bluez | 5.13-5.12.1 | SUSE-SU-2019:1339-1 |
| SLES for SAP 12 SP3 | bluez | 5.13-5.12.1 | SUSE-SU-2019:1339-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | bluez | 5.48-lp151.8.3.1 | openSUSE-SU-2019:1476-1 |
| openSUSE Leap 15.0 | bluez | 5.48-lp151.8.3.1 | openSUSE-SU-2019:1476-1 |
Advisories 4
- openSUSE-SU-2019:1476-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1339-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1353-2 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1353-1 Security update for bluez SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://www.spinics.net/lists/linux-bluetooth/msg68898.html
- 94652 vdb-entry
- openSUSE-SU-2019:1476 vendor-advisory