Executive Summary

Summary
Title BlueZ: Security bypass
Informations
Name GLSA-202003-49 First vendor Publication 2020-03-25
Vendor Gentoo Last vendor Modification 2020-03-25
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Overall CVSS Score 7.1
Base Score 7.1 Environmental Score 7.1
impact SubScore 3.7 Temporal Score 7.1
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact Low
Integrity Impact Low Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 5.8 Attack Range Adjacent network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 6.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in BlueZ might allow remote attackers to bypass security restrictions.

Background

Set of tools to manage Bluetooth devices for Linux.

Description

It was discovered that the HID and HOGP profiles implementations in BlueZ did not specifically require bonding between the device and the host.

Impact

A remote attacker with adjacent access could impersonate an existing HID device, cause a Denial of Service condition or escalate privileges.

Workaround

There is no known workaround at this time.

Resolution

All BlueZ users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-wireless/bluez-5.54"

References

[ 1 ] CVE-2020-0556 : https://nvd.nist.gov/vuln/detail/CVE-2020-0556

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/202003-49

Original Source

Url : http://security.gentoo.org/glsa/glsa-202003-49.xml

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 3
Os 3
Os 3
Os 2

Alert History

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0
1
Date Informations
2020-05-23 13:03:43
  • Multiple Updates
2020-03-25 17:18:57
  • First insertion