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CVE-2019-9506

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CVE-2019-9506

Published: Aug 14, 2019

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.0

7.6

HIGH

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.

VendorProductVersions

Bluetooth

BR/EDR

affected
5.1 - <= 5.1

Weaknesses (CWE)

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

Low

References

VU#918987
third-party-advisory
x_refsource_CERT-VN
USN-4115-1
vendor-advisory
x_refsource_UBUNTU
USN-4118-1
vendor-advisory
x_refsource_UBUNTU
USN-4147-1
vendor-advisory
x_refsource_UBUNTU
RHSA-2019:2975
vendor-advisory
x_refsource_REDHAT
openSUSE-SU-2019:2307
vendor-advisory
x_refsource_SUSE
openSUSE-SU-2019:2308
vendor-advisory
x_refsource_SUSE
RHSA-2019:3076
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3055
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3089
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3187
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3165
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3217
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3220
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3231
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3218
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3309
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3517
vendor-advisory
x_refsource_REDHAT
RHSA-2020:0204
vendor-advisory
x_refsource_REDHAT

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