PT-2020-3999 · Intel · Intel Core Processor

Published 2020-06-09 · Updated 2021-07-21 · CVE-2020-0528

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:L/AC:H/Au:S/C:N/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Intel(R) Core(TM) Processor families versions 7th through 10th Generation

Description: The issue is related to improper buffer restrictions in BIOS firmware, which may allow an authenticated user to potentially enable escalation of privilege and/or denial of service via local access. This is caused by a buffer overflow in the microcode of Intel processors.

Recommendations: For 7th Generation Intel(R) Core(TM) Processor families: Update the BIOS firmware to the latest version. For 8th Generation Intel(R) Core(TM) Processor families: Update the BIOS firmware to the latest version. For 9th Generation Intel(R) Core(TM) Processor families: Update the BIOS firmware to the latest version. For 10th Generation Intel(R) Core(TM) Processor families: Update the BIOS firmware to the latest version. As a temporary workaround, consider restricting local access to minimize the risk of exploitation.

Fix

Buffer Overflow

Improper Initialization

Weakness Enumeration

CWE-119

CWE-665

Related Identifiers

BDU:2020-04392

BDU:2020-04393

CVE-2020-0528

Affected Products

Intel Core Processor

References · 5

• https://bdu.fstec.ru/vul/2020-04393 · Security Note
• https://intel.com/content/www/us/en/security-center/advisory/intel-sa-00322.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-0528 · Security Note
• https://bdu.fstec.ru/vul/2020-04392 · Security Note
• https://t.me/cibsecurity/12792 · Telegram Post