vulnerability
Oracle Linux: CVE-2019-9506: ELSA-2019-3055: kernel security and bug fix update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:A/AC:L/Au:N/C:P/I:P/A:N) | Aug 10, 2019 | Oct 18, 2019 | Dec 3, 2025 |
Severity
5
CVSS
(AV:A/AC:L/Au:N/C:P/I:P/A:N)
Published
Aug 10, 2019
Added
Oct 18, 2019
Modified
Dec 3, 2025
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.
A flaw was discovered in the Bluetooth protocol. An attacker within physical proximity to the Bluetooth connection could downgrade the encryption protocol to be trivially brute forced.
A flaw was discovered in the Bluetooth protocol. An attacker within physical proximity to the Bluetooth connection could downgrade the encryption protocol to be trivially brute forced.
Solution
oracle-linux-upgrade-kernel
Rapid7 Labs
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