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intelIntel Security CenterINTEL:INTEL-SA-00435
HistoryOct 15, 2020 - 12:00 a.m.

BlueZ Advisory

2020-10-1500:00:00
Intel Security Center
www.intel.com
40

Summary:

Potential security vulnerabilities in BlueZ may allow escalation of privilege or information disclosure.** **BlueZ is releasing Linux kernel fixes to address these potential vulnerabilities.

Vulnerability Details:

CVEID: CVE-2020-12351

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

CVEID: CVE-2020-12352

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

CVEID: CVE-2020-24490

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

Affected Products:

All Linux kernel versions that support BlueZ.

Recommendations:

Intel recommends installing the following kernel fixes to address these issues:

<https://lore.kernel.org/linux-bluetooth/[email protected]/&gt;

<https://lore.kernel.org/linux-bluetooth/[email protected]/&gt;

<https://lore.kernel.org/linux-bluetooth/[email protected]/&gt;

<https://lore.kernel.org/linux-bluetooth/[email protected]/&gt;

<https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=a2ec905d1e160a33b2e210e45ad30445ef26ce0e&gt;


Acknowledgements:

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.

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