# CVE-2020-0556: bluez-libs: The bluez packages contain the following utilities for use in Bluetooth applications: hcitool, hciattach, hciconfig,...

CVE-2020-0556 is fixed in 10 products on 1 platform, first by bluetooth 5.48-0ubuntu3.4, released March 12, 2020. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2020-0556
- Priority: High
- CVSS: 7.1 (Moderate)
- EPSS: 0.0104
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 12, 2020

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bluetooth Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.4 | [bluetooth 5.48-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bluetooth-5.48-0ubuntu3.4.md) | Mar 12, 2020 |
| Linux | bluez RHEL 8 | 0:5.50-4.el8 | [RHSA-2020:4481](https://patchblox.com/security/data/fix/linux/rhsa-2020-4481.md) | Nov 4, 2020 |
| Linux | bluez Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.4 | [bluez 5.48-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bluez-5.48-0ubuntu3.4.md) | Mar 12, 2020 |
| Linux | bluez ol 8 | 0:5.50-4.el8 | [ELSA-2020-4481](https://patchblox.com/security/data/fix/linux/elsa-2020-4481.md) | Nov 18, 2020 |
| Linux | bluez-cups RHEL 8 | 0:5.50-4.el8 | [RHSA-2020:4481](https://patchblox.com/security/data/fix/linux/rhsa-2020-4481.md) | Nov 4, 2020 |
| Linux | bluez-cups Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.4 | [bluez-cups 5.48-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bluez-cups-5.48-0ubuntu3.4.md) | Mar 12, 2020 |
| Linux | bluez-cups ol 8 | 0:5.50-4.el8 | [ELSA-2020-4481](https://patchblox.com/security/data/fix/linux/elsa-2020-4481.md) | Nov 18, 2020 |
| Linux | bluez-hcidump Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.4 | [bluez-hcidump 5.48-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bluez-hcidump-5.48-0ubuntu3.4.md) | Mar 12, 2020 |
| Linux | bluez-hid2hci RHEL 8 | 0:5.50-4.el8 | [RHSA-2020:4481](https://patchblox.com/security/data/fix/linux/rhsa-2020-4481.md) | Nov 4, 2020 |
| Linux | bluez-hid2hci ol 8 | 0:5.50-4.el8 | [ELSA-2020-4481](https://patchblox.com/security/data/fix/linux/elsa-2020-4481.md) | Nov 18, 2020 |
| Linux | bluez-libs RHEL 8 | 0:5.50-4.el8 | [RHSA-2020:4481](https://patchblox.com/security/data/fix/linux/rhsa-2020-4481.md) | Nov 4, 2020 |
| Linux | bluez-libs ol 8 | 0:5.50-4.el8 | [ELSA-2020-4481](https://patchblox.com/security/data/fix/linux/elsa-2020-4481.md) | Nov 18, 2020 |
| Linux | bluez-libs-devel RHEL 8 | 0:5.50-4.el8 | [RHSA-2020:4481](https://patchblox.com/security/data/fix/linux/rhsa-2020-4481.md) | Nov 4, 2020 |
| Linux | bluez-libs-devel ol 8 | 0:5.50-4.el8 | [ELSA-2020-4481](https://patchblox.com/security/data/fix/linux/elsa-2020-4481.md) | Nov 18, 2020 |
| Linux | bluez-obexd RHEL 8 | 0:5.50-4.el8 | [RHSA-2020:4481](https://patchblox.com/security/data/fix/linux/rhsa-2020-4481.md) | Nov 4, 2020 |
| Linux | bluez-obexd Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.4 | [bluez-obexd 5.48-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bluez-obexd-5.48-0ubuntu3.4.md) | Mar 12, 2020 |
| Linux | bluez-obexd ol 8 | 0:5.50-4.el8 | [ELSA-2020-4481](https://patchblox.com/security/data/fix/linux/elsa-2020-4481.md) | Nov 18, 2020 |
| Linux | bluez-tests Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.4 | [bluez-tests 5.48-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bluez-tests-5.48-0ubuntu3.4.md) | Mar 12, 2020 |
| Linux | libbluetooth3 Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.4 | [libbluetooth3 5.48-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libbluetooth3-5.48-0ubuntu3.4.md) | Mar 12, 2020 |

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