Use of a Broken or Risky Cryptographic Algorithm Affecting kernel-rt-debug package, versions <0:4.18.0-147.rt24.93.el8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.11% (45th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUG-3468875
  • published26 Jul 2021
  • disclosed10 Aug 2019

Introduced: 10 Aug 2019

CVE-2019-9506  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-debug to version 0:4.18.0-147.rt24.93.el8 or higher.
This issue was patched in RHSA-2019:3309.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug 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.

CVSS Scores

version 3.1