RHSA-2020:4001 — Security Advisory
Red Hat Security Advisory: bluez security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · September 30, 2020
Updated · June 27, 2026
Topic
An update for bluez is now available for Red Hat Enterprise Linux 7.
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 7.9 Release Notes linked from the References section.