| Name | CVE-2020-26557 |
| Description | Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (without possession of the AuthValue used in the provisioning protocol) to determine the AuthValue via a brute-force attack (unless the AuthValue is sufficiently random and changed each time). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| bluez (PTS) | jessie, jessie (lts) | 5.43-2+deb9u2~deb8u6 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| bluez | source | jessie | (not affected) | | | |
Notes
NOT-FOR-US: Bluetooth
There's no indication that any Bluetooth software in Debian is affected
https://kb.cert.org/vuls/id/799380
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/predicatable-authvalue/
https://bugzilla.redhat.com/show_bug.cgi?id=1960009
[jessie] - bluez <not-affected> (Mesh support introduced later)