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Use of a Broken or Risky Cryptographic Algorithm The advisory has been revoked - it doesn't affect any version of package kernel-rt-extra  (opens in a new tab)

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
2.69% (85th percentile)

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  • Snyk IDSNYK-SLES151-KERNELRTEXTRA-2728392
  • published14 Apr 2022
  • disclosed13 Dec 2019
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Introduced: 13 Dec 2019

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

Amendment

The SLES security team deemed this advisory irrelevant for SLES:15.1.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-extra package and not the kernel-rt-extra package as distributed by SLES.

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.

References