CVEvulnerability

CVE-2019-9506

8.1 HIGH Published 2019-08-14 Modified 2026-06-17 Official page ↗

Status: Modified
Published: 2019-08-14
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 8.1 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.0 ([email protected]): 7.6 HIGH — CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CVSS 2.0 ([email protected]): 4.8 MEDIUM — AV:A/AC:L/Au:N/C:P/I:P/A:N
Weaknesses: CWE-310, CWE-327

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.

Affected configurations

• google android • apple iphone os 12.4 • apple mac os x 10.12.6 • apple mac os x 10.13.6 • apple mac os x 10.14.5 • apple tvos 12.4 • apple watchos 5.3 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 19.04 • debian debian linux 8.0 • opensuse leap 15.0 • opensuse leap 15.1 • redhat mrg realtime 2.0 • redhat virtualization host eus 4.2 • redhat enterprise linux 8.0 • redhat enterprise linux aus 7.5 • redhat enterprise linux eus 7.6 • redhat enterprise linux eus 7.7 • redhat enterprise linux eus 8.1 • redhat enterprise linux eus 8.2 • redhat enterprise linux eus 8.4 • redhat enterprise linux for real time 7 • redhat enterprise linux for real time 8 • redhat enterprise linux for real time eus 8.2 • redhat enterprise linux for real time eus 8.4 • redhat enterprise linux for real time for nfv 7 • redhat enterprise linux for real time for nfv 8 • redhat enterprise linux for real time for nfv eus 8.2 • redhat enterprise linux for real time for nfv eus 8.4 • redhat enterprise linux server 7.0 • redhat enterprise linux server aus 7.3 • redhat enterprise linux server aus 7.4 • redhat enterprise linux server aus 7.6 • redhat enterprise linux server aus 7.7 • redhat enterprise linux server aus 8.2 • redhat enterprise linux server aus 8.4 • redhat enterprise linux server tus 7.3 • redhat enterprise linux server tus 7.4 • redhat enterprise linux server tus 7.6 • redhat enterprise linux server tus 7.7 • redhat enterprise linux server tus 8.2 • redhat enterprise linux server tus 8.4 • redhat enterprise linux tus 7.6 • huawei alp-al00b firmware (< 9.1.0.333\(c00e333r2p1t8\)) • huawei ares-al00b firmware (< 9.1.0.160\(c00e160r2p5t8\)) • huawei ares-al10d firmware (< 9.1.0.160\(c00e160r2p5t8\)) • huawei ares-tl00c firmware (< 9.1.0.165\(c01e165r2p5t8\)) • huawei asoka-al00ax firmware (< 9.1.1.181\(c00e48r6p1\)) • huawei atomu-l33 firmware (< 8.0.0.147\(c605custc605d1\)) • huawei atomu-l41 firmware (< 8.0.0.153\(c461custc461d1\)) • huawei atomu-l42 firmware (< 8.0.0.155\(c636custc636d1\)) • huawei bla-al00b firmware (< 9.1.0.329\(c786e320r2p1t8\)) • huawei bla-l29c firmware (< 9.1.0.300\(c605e2r1p12t8\)) • huawei bla-tl00b firmware (< 9.1.0.329\(c01e320r1p1t8\)) • huawei barca-al00 firmware (< 8.0.0.366\(c00\)) • huawei berkeley-al20 firmware (< 9.1.0.333\(c00e333r2p1t8\)) • huawei berkeley-l09 firmware (< 9.1.0.332\(c432e5r1p13t8\)) • huawei berkeley-tl10 firmware (< 9.1.0.333\(c01e333r1p1t8\)) • huawei cairogo-l22 firmware (< cairogo-l22c461b153) … and 146 more

Weakness · not in database (1)

CWE-310

Weakness · CWE (1)

CWE-327 Use of a Broken or Risky Cryptographic Algorithm weakness

References