Description
In BlueZ 5.42, a buffer overflow was observed in "pklg_read_hci" function in "btsnoop.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 | — |