-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
INTEL-SA-00435 BlueZ Advisory
16 October 2020
AusCERT Security Bulletin Summary
Operating System: Linux variants
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
CVE Names: CVE-2020-24490 CVE-2020-12352 CVE-2020-12351
Revision History: October 16 2020: Vendor updated advisory to remove reference to Linux kernel version
October 14 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Intel ID: INTEL-SA-00435
Advisory Category: Software
Impact of vulnerability : Escalation of Privilege, Information Disclosure
Severity rating : HIGH
Original release: 10/13/2020
Last revised: 10/15/2020
Potential security vulnerabilities in BlueZ may allow escalation of privilege
or information disclosure. BlueZ is releasing Linux kernel fixes to address
these potential vulnerabilities.
Description: Improper input validation in BlueZ may allow an unauthenticated
user to potentially enable escalation of privilege via adjacent access.
CVSS Base Score: 8.3 High
CVSS Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Description: Improper access control in BlueZ may allow an unauthenticated user
to potentially enable information disclosure via adjacent access.
CVSS Base Score: 5.3 Medium
CVSS Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Description: Improper buffer restrictions in BlueZ may allow an unauthenticated
user to potentially enable denial of service via adjacent access.
CVSS Base Score: 5.3 Medium
CVSS Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
All Linux kernel versions that support BlueZ.
Intel recommends installing the following kernel fixes to address these issues:
Intel would like to thank Andy Nguyen, security engineer from Google for
reporting these issues.
Intel, and nearly the entire technology industry, follows a disclosure practice
called Coordinated Disclosure, under which a cybersecurity vulnerability is
generally publicly disclosed only after mitigations are available.
Revision Date Description
1.0 10/13/2020 Initial Release
1.1 10/15/2020 Removed reference to Linux kernel version
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to firstname.lastname@example.org
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----