PublicDateAtUSN: 2019-08-13
Candidate: CVE-2019-9506
CRD: 2019-08-13
PublicDate: 2019-08-14 17:15:00 UTC
References: 
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9506
 https://www.usenix.org/conference/usenixsecurity19/presentation/antonioli
 https://knobattack.com/
 https://www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/
 https://ubuntu.com/security/notices/USN-4115-1
 https://ubuntu.com/security/notices/USN-4118-1
 https://ubuntu.com/security/notices/USN-4147-1
Description:
 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.
Ubuntu-Description:
 Daniele Antonioli, Nils Ole Tippenhauer, and Kasper B. Rasmussen discovered
 that the Bluetooth protocol BR/EDR specification did not properly require
 sufficiently strong encryption key lengths. A physically proximate attacker
 could use this to expose sensitive information.
Notes: 
 sbeattie> CERT VU#918987
 mdeslaur> Mitigation for this issue was added to the kernel
Bugs: 
 https://bugzilla.kernel.org/show_bug.cgi?id=203997
Priority: medium
Discovered-by: Daniele Antonioli, Nils Ole Tippenhauer, and Kasper B. Rasmussen
Assigned-to: 
CVSS:
 nvd: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N [8.1 HIGH]
 nvd: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N [8.1 HIGH]


Patches_linux:
 break-fix: - d5bb334a8e171b262e48f378bd2096c0ea458265
 break-fix: - 693cd8ce3f882524a5d06f7800dd8492411877b3
 break-fix: 693cd8ce3f882524a5d06f7800dd8492411877b3 eca94432934fe5f141d084f2e36ee2c0e614cc04
upstream_linux: released (5.2)
precise/esm_linux: ignored (was needs-triage ESM criteria)
trusty/esm_linux: ignored (was needs-triage ESM criteria)
xenial_linux: released (4.4.0-159.187)
esm-infra/xenial_linux: released (4.4.0-159.187)
bionic_linux: released (4.15.0-60.67)
disco_linux: released (5.0.0-31.33)
eoan_linux: not-affected (5.2.0-8.9)
focal_linux: not-affected (5.4.0-9.12)
devel_linux: not-affected (5.4.0-9.12)

Patches_linux-hwe:
upstream_linux-hwe: released (5.2)
precise/esm_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
xenial_linux-hwe: released (4.15.0-60.67~16.04.1)
esm-infra/xenial_linux-hwe: released (4.15.0-60.67~16.04.1)
bionic_linux-hwe: released (5.0.0-31.33~18.04.1)
disco_linux-hwe: DNE
eoan_linux-hwe: DNE
focal_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (5.2)
precise/esm_linux-hwe-edge: DNE
trusty/esm_linux-hwe-edge: DNE
xenial_linux-hwe-edge: released (4.15.0-60.67~16.04.1)
esm-infra/xenial_linux-hwe-edge: released (4.15.0-60.67~16.04.1)
bionic_linux-hwe-edge: ignored (was pending \[5.3.0-19.20~18.04.2\] now end-of-life)
disco_linux-hwe-edge: DNE
eoan_linux-hwe-edge: DNE
focal_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (5.2)
precise/esm_linux-lts-xenial: DNE
trusty/esm_linux-lts-xenial: ignored (was needs-triage ESM criteria)
xenial_linux-lts-xenial: DNE
bionic_linux-lts-xenial: DNE
disco_linux-lts-xenial: DNE
eoan_linux-lts-xenial: DNE
focal_linux-lts-xenial: DNE
devel_linux-lts-xenial: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (5.2)
precise/esm_linux-lts-trusty: ignored (was needs-triage ESM criteria)
trusty/esm_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
bionic_linux-lts-trusty: DNE
disco_linux-lts-trusty: DNE
eoan_linux-lts-trusty: DNE
focal_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-oem:
upstream_linux-oem: released (5.2)
precise/esm_linux-oem: DNE
trusty/esm_linux-oem: DNE
xenial_linux-oem: ignored (was needs-triage now end-of-life)
bionic_linux-oem: released (4.15.0-1056.65)
disco_linux-oem: ignored (was pending \[4.15.0-1056.65\] now end-of-life)
eoan_linux-oem: released (4.15.0-1059.68)
focal_linux-oem: DNE
devel_linux-oem: DNE

Patches_linux-kvm:
upstream_linux-kvm: released (5.2)
precise/esm_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
xenial_linux-kvm: not-affected (CONFIG_BT not set)
esm-infra/xenial_linux-kvm: not-affected (CONFIG_BT not set)
bionic_linux-kvm: not-affected (CONFIG_BT not set)
disco_linux-kvm: not-affected (CONFIG_BT not set)
eoan_linux-kvm: not-affected (CONFIG_BT not set)
focal_linux-kvm: not-affected (CONFIG_BT not set)
devel_linux-kvm: not-affected (CONFIG_BT not set)

Patches_linux-aws:
upstream_linux-aws: released (5.2)
precise/esm_linux-aws: DNE
trusty/esm_linux-aws: ignored (was needs-triage ESM criteria)
xenial_linux-aws: released (4.4.0-1090.101)
esm-infra/xenial_linux-aws: released (4.4.0-1090.101)
bionic_linux-aws: released (4.15.0-1047.49)
disco_linux-aws: released (5.0.0-1018.20)
eoan_linux-aws: not-affected (5.3.0-1003.3)
focal_linux-aws: not-affected (5.4.0-1005.5)
devel_linux-aws: not-affected (5.4.0-1005.5)

Patches_linux-aws-hwe:
upstream_linux-aws-hwe: released (5.2)
precise/esm_linux-aws-hwe: DNE
trusty/esm_linux-aws-hwe: DNE
xenial_linux-aws-hwe: released (4.15.0-1047.49~16.04.1)
esm-infra/xenial_linux-aws-hwe: released (4.15.0-1047.49~16.04.1)
bionic_linux-aws-hwe: DNE
disco_linux-aws-hwe: DNE
eoan_linux-aws-hwe: DNE
focal_linux-aws-hwe: DNE
devel_linux-aws-hwe: DNE

Patches_linux-azure:
upstream_linux-azure: released (5.2)
precise/esm_linux-azure: DNE
trusty/esm_linux-azure: ignored (was needs-triage ESM criteria)
xenial_linux-azure: not-affected (CONFIG_BT not set)
esm-infra/xenial_linux-azure: not-affected (CONFIG_BT not set)
bionic_linux-azure: not-affected (CONFIG_BT not set)
disco_linux-azure: not-affected (CONFIG_BT not set)
eoan_linux-azure: not-affected (CONFIG_BT not set)
focal_linux-azure: not-affected (CONFIG_BT not set)
devel_linux-azure: not-affected (CONFIG_BT not set)

Patches_linux-azure-edge:
upstream_linux-azure-edge: released (5.2)
precise/esm_linux-azure-edge: DNE
trusty/esm_linux-azure-edge: DNE
xenial_linux-azure-edge: not-affected (CONFIG_BT not set)
bionic_linux-azure-edge: not-affected (CONFIG_BT not set)
disco_linux-azure-edge: DNE
eoan_linux-azure-edge: DNE
focal_linux-azure-edge: DNE
devel_linux-azure-edge: DNE

Patches_linux-gcp:
upstream_linux-gcp: released (5.2)
precise/esm_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
xenial_linux-gcp: released (4.15.0-1041.43)
esm-infra/xenial_linux-gcp: released (4.15.0-1041.43)
bionic_linux-gcp: released (4.15.0-1042.45)
disco_linux-gcp: released (5.0.0-1020.20)
eoan_linux-gcp: not-affected (5.3.0-1003.3)
focal_linux-gcp: not-affected (5.4.0-1005.5)
devel_linux-gcp: not-affected (5.4.0-1005.5)

Patches_linux-gcp-edge:
upstream_linux-gcp-edge: released (5.2)
precise/esm_linux-gcp-edge: DNE
trusty/esm_linux-gcp-edge: DNE
xenial_linux-gcp-edge: DNE
bionic_linux-gcp-edge: released (4.15.0-1042.45)
disco_linux-gcp-edge: DNE
eoan_linux-gcp-edge: DNE
focal_linux-gcp-edge: DNE
devel_linux-gcp-edge: DNE

Patches_linux-gke-4.15:
upstream_linux-gke-4.15: released (5.2)
precise/esm_linux-gke-4.15: DNE
trusty/esm_linux-gke-4.15: DNE
xenial_linux-gke-4.15: DNE
bionic_linux-gke-4.15: released (4.15.0-1041.43)
disco_linux-gke-4.15: DNE
eoan_linux-gke-4.15: DNE
focal_linux-gke-4.15: DNE
devel_linux-gke-4.15: DNE

Patches_linux-gke-5.0:
upstream_linux-gke-5.0: released (5.2)
precise/esm_linux-gke-5.0: DNE
trusty/esm_linux-gke-5.0: DNE
xenial_linux-gke-5.0: DNE
bionic_linux-gke-5.0: released (5.0.0-1020.20~18.04.1)
disco_linux-gke-5.0: DNE
eoan_linux-gke-5.0: DNE
focal_linux-gke-5.0: DNE
devel_linux-gke-5.0: DNE

Patches_linux-oracle:
upstream_linux-oracle: released (5.2)
precise/esm_linux-oracle: DNE
trusty/esm_linux-oracle: DNE
xenial_linux-oracle: released (4.15.0-1022.25~16.04.1)
esm-infra/xenial_linux-oracle: released (4.15.0-1022.25~16.04.1)
bionic_linux-oracle: released (4.15.0-1022.25)
disco_linux-oracle: released (5.0.0-1004.8)
eoan_linux-oracle: not-affected (5.3.0-1002.2)
focal_linux-oracle: not-affected (5.4.0-1005.5)
devel_linux-oracle: not-affected (5.4.0-1005.5)

Patches_linux-raspi2:
upstream_linux-raspi2: released (5.2)
precise/esm_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
xenial_linux-raspi2: released (4.4.0-1118.127)
bionic_linux-raspi2: released (4.15.0-1044.47)
disco_linux-raspi2: released (5.0.0-1019.19)
eoan_linux-raspi2: not-affected (5.3.0-1005.6)
focal_linux-raspi2: not-affected (5.4.0-1004.4)
devel_linux-raspi2: not-affected (5.4.0-1004.4)

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (5.2)
precise/esm_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
xenial_linux-snapdragon: released (4.4.0-1122.128)
bionic_linux-snapdragon: released (4.15.0-1062.69)
disco_linux-snapdragon: released (5.0.0-1023.24)
eoan_linux-snapdragon: DNE
focal_linux-snapdragon: DNE
devel_linux-snapdragon: DNE

Patches_linux-oem-osp1:
upstream_linux-oem-osp1: released (5.2)
precise/esm_linux-oem-osp1: DNE
trusty_linux-oem-osp1: DNE
trusty/esm_linux-oem-osp1: DNE
xenial_linux-oem-osp1: DNE
bionic_linux-oem-osp1: released (5.0.0-1024.27)
disco_linux-oem-osp1: ignored (reached end-of-life)
eoan_linux-oem-osp1: released (5.0.0-1024.27)
focal_linux-oem-osp1: DNE
devel_linux-oem-osp1: DNE

Patches_linux-aws-5.0:
upstream_linux-aws-5.0: released (5.2)
precise/esm_linux-aws-5.0: DNE
trusty_linux-aws-5.0: DNE
trusty/esm_linux-aws-5.0: DNE
xenial_linux-aws-5.0: DNE
bionic_linux-aws-5.0: not-affected (5.0.0-1021.24~18.04.1)
disco_linux-aws-5.0: DNE
eoan_linux-aws-5.0: DNE
focal_linux-aws-5.0: DNE
devel_linux-aws-5.0: DNE

Patches_linux-azure-5.3:
upstream_linux-azure-5.3: released (5.2)
precise/esm_linux-azure-5.3: DNE
trusty_linux-azure-5.3: DNE
trusty/esm_linux-azure-5.3: DNE
xenial_linux-azure-5.3: DNE
bionic_linux-azure-5.3: not-affected (5.3.0-1007.8~18.04.1)
disco_linux-azure-5.3: DNE
eoan_linux-azure-5.3: DNE
focal_linux-azure-5.3: DNE
devel_linux-azure-5.3: DNE

Patches_linux-gcp-5.3:
upstream_linux-gcp-5.3: released (5.2)
precise/esm_linux-gcp-5.3: DNE
trusty_linux-gcp-5.3: DNE
trusty/esm_linux-gcp-5.3: DNE
xenial_linux-gcp-5.3: DNE
bionic_linux-gcp-5.3: not-affected (5.3.0-1008.9~18.04.1)
disco_linux-gcp-5.3: DNE
eoan_linux-gcp-5.3: DNE
focal_linux-gcp-5.3: DNE
devel_linux-gcp-5.3: DNE

Patches_linux-oracle-5.0:
upstream_linux-oracle-5.0: released (5.2)
precise/esm_linux-oracle-5.0: DNE
trusty_linux-oracle-5.0: DNE
trusty/esm_linux-oracle-5.0: DNE
xenial_linux-oracle-5.0: DNE
bionic_linux-oracle-5.0: not-affected (5.0.0-1007.12~18.04.1)
disco_linux-oracle-5.0: DNE
eoan_linux-oracle-5.0: DNE
focal_linux-oracle-5.0: DNE
devel_linux-oracle-5.0: DNE

Patches_linux-raspi2-5.3:
upstream_linux-raspi2-5.3: released (5.2)
precise/esm_linux-raspi2-5.3: DNE
trusty_linux-raspi2-5.3: DNE
trusty/esm_linux-raspi2-5.3: DNE
xenial_linux-raspi2-5.3: DNE
bionic_linux-raspi2-5.3: not-affected (5.3.0-1017.19~18.04.1)
eoan_linux-raspi2-5.3: DNE
focal_linux-raspi2-5.3: DNE
devel_linux-raspi2-5.3: DNE

Patches_linux-oem-5.6:
upstream_linux-oem-5.6: released (5.2)
precise/esm_linux-oem-5.6: DNE
trusty_linux-oem-5.6: DNE
trusty/esm_linux-oem-5.6: DNE
xenial_linux-oem-5.6: DNE
bionic_linux-oem-5.6: DNE
eoan_linux-oem-5.6: DNE
focal_linux-oem-5.6: not-affected (5.4.0-1002.4)
devel_linux-oem-5.6: not-affected (5.4.0-1002.4)

Patches_linux-gke-5.3:
upstream_linux-gke-5.3: released (5.2)
precise/esm_linux-gke-5.3: DNE
trusty_linux-gke-5.3: DNE
trusty/esm_linux-gke-5.3: DNE
xenial_linux-gke-5.3: DNE
bionic_linux-gke-5.3: not-affected (5.3.0-1011.12~18.04.1)
eoan_linux-gke-5.3: DNE
focal_linux-gke-5.3: DNE
devel_linux-gke-5.3: DNE

Patches_linux-oracle-5.3:
upstream_linux-oracle-5.3: released (5.2)
precise/esm_linux-oracle-5.3: DNE
trusty_linux-oracle-5.3: DNE
trusty/esm_linux-oracle-5.3: DNE
xenial_linux-oracle-5.3: DNE
bionic_linux-oracle-5.3: not-affected (5.3.0-1011.12~18.04.1)
eoan_linux-oracle-5.3: DNE
focal_linux-oracle-5.3: DNE
devel_linux-oracle-5.3: DNE