RHSA-2020:4481 — Security Advisory

Red Hat Security Advisory: bluez security update

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Severity

Moderate

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · November 4, 2020

Updated · June 27, 2026

Topic

An update for bluez is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The bluez packages contain the following utilities for use in Bluetooth applications: hcitool, hciattach, hciconfig, bluetoothd, l2ping, start scripts (Red Hat), and pcmcia configuration files.

Security Fix(es):

  • bluez: Improper access control in subsystem could result in privilege escalation and DoS (CVE-2020-0556)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Related CVEs

RHSA-2020:4481 — Red Hat Security Advisory: bluez security update | PulseLinux