The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.
References
Link Resource
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/11 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/13 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/14 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/15 Mailing List Third Party Advisory
http://www.cs.ox.ac.uk/publications/publication12404-abstract.html Third Party Advisory
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190828-01-knob-en Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2975 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3055 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3076 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3089 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3165 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3187 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3217 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3218 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3220 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3231 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3309 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3517 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0204 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html Mailing List Third Party Advisory
https://usn.ubuntu.com/4115-1/ Third Party Advisory
https://usn.ubuntu.com/4118-1/ Third Party Advisory
https://usn.ubuntu.com/4147-1/ Third Party Advisory
https://www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/ Third Party Advisory
https://www.kb.cert.org/vuls/id/918987/ Third Party Advisory US Government Resource
https://www.usenix.org/conference/usenixsecurity19/presentation/antonioli Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: certcc

Published: 2019-08-14T00:00:00

Updated: 2020-01-30T10:06:23

Reserved: 2019-03-01T00:00:00


Link: CVE-2019-9506

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-08-14T17:15:11.597

Modified: 2021-11-04T15:58:19.197


Link: CVE-2019-9506

JSON object: View

cve-icon Redhat Information

No data.