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Start learningUpgrade RHEL:8
kernel-rt-core
to version 0:4.18.0-147.rt24.93.el8 or higher.
This issue was patched in RHSA-2019:3309
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-core
package and not the kernel-rt-core
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
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.