Intel BIOS Advisory

Summary:

Potential security vulnerabilities in BIOS firmware for multiple Intel Platforms may allow escalation of privilege, denial of service and/or information disclosure. Intel is releasing BIOS updates to mitigate these potential vulnerabilities.

Vulnerability Details:

CVEID: CVE-2020-8672

Description: Out of bound read in BIOS firmware for 8th, 9th Generation Intel® Core™, Intel® Celeron® Processor 4000 Series Processors may allow an unauthenticated user to potentially enable elevation of privilege or denial of service via local access.

CVSS base Score: 5.1 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVEID: CVE-2019-14557

Description: Buffer overflow in BIOS firmware for 8th, 9th, 10th Generation Intel® Core™, Intel® Celeron® Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable elevation of privilege or denial of service via adjacent access.

CVSS base Score: 4.6 Medium

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CVEID: CVE-2019-14558

Description: Insufficient control flow management in BIOS firmware for 8th, 9th, 10th Generation Intel® Core™, Intel® Celeron® Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable denial of service via adjacent access.

CVSS base Score: 3.0 Low

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

CVEID: CVE-2020-8671

Description: Insufficient control flow management in BIOS firmware 8th, 9th Generation Intel® Core™ Processors and Intel® Celeron® Processor 4000 Series may allow an authenticated user to potentially enable information disclosure via local access.

CVSS base Score: 5.0 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CVEID: CVE-2019-14556

Description: Improper initialization in BIOS firmware for 8th, 9th, 10th Generation Intel® Core™, Intel® Celeron® Processor 4000 & 5000 Series Processors may allow a privileged user to potentially enable denial of service via local access.

CVSS base Score: 2.0 Low

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L

Affected Products:

• 8th Generation Intel® Core™ Processor
• 9th Generation Intel® Core™ Processor
• 10th Generation Intel® Core™ i7 Processor
• Intel® Celeron® Processor 5000 Series
• Intel® Celeron® Processor 4000 Series

Recommendations:

Intel recommends that users of above Intel® products update to the latest BIOS version provided by the system manufacturer that addresses these issues.__

Acknowledgements:

These issues were found internally by Intel.

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.