| Name | CVE-2021-34146 |
| Description | The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and restart (crash) of the device by flooding it with LMP_AU_Rand packets after the paging procedure. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1024356 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| bluez-firmware (PTS) | buster/non-free, bullseye/non-free | 1.2-4 | fixed |
| trixie/non-free-firmware, bookworm/non-free-firmware | 1.2-9 | fixed |
| sid/non-free-firmware | 1.2-11 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bullseye] - bluez-firmware <not-affected> (Affected firmware not present, introduced in bluez-firmware/1.2-6)
[buster] - bluez-firmware <not-affected> (Affected firmware not present, introduced in bluez-firmware/1.2-6)
https://github.com/RPi-Distro/bluez-firmware/commit/31ad68831357d2019624004f1f0846475671088f