Improper Authentication Affecting bluez-libs-devel package, versions <0:5.56-1.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.07% (30th percentile)

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  • Snyk ID SNYK-RHEL8-BLUEZLIBSDEVEL-4199040
  • published 26 Jul 2021
  • disclosed 24 May 2021

How to fix?

Upgrade RHEL:8 bluez-libs-devel to version 0:5.56-1.el8 or higher.
This issue was patched in RHSA-2021:4432.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bluez-libs-devel package and not the bluez-libs-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.

CVSS Scores

version 3.1
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NVD

4.2 medium
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
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Red Hat

4.2 medium
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SUSE

4.2 medium