Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-40154

Severity CVSS v4.0:
Pending analysis
Type:
CWE-125 Out-of-bounds Read
Publication date:
01/12/2021
Last modified:
06/12/2021

Description

NXP LPC55S69 devices before A3 have a buffer over-read via a crafted wlength value in a GET Descriptor Configuration request during use of USB In-System Programming (ISP) mode. This discloses protected flash memory.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 2.10 LOW
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
2.10
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:nxp:lpc55s69jbd100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:nxp:lpc55s69jbd100:0a:*:*:*:*:*:*:*
cpe:2.3:o:nxp:lpc55s69jbd100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:nxp:lpc55s69jbd100:1b:*:*:*:*:*:*:*
cpe:2.3:o:nxp:lpc55s69jbd64_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:nxp:lpc55s69jbd64:0a:*:*:*:*:*:*:*
cpe:2.3:o:nxp:lpc55s69jbd64_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:nxp:lpc55s69jbd64:1b:*:*:*:*:*:*:*
cpe:2.3:o:nxp:lpc55s69jev98_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:nxp:lpc55s69jev98:0a:*:*:*:*:*:*:*
cpe:2.3:o:nxp:lpc55s69jev98_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:nxp:lpc55s69jev98:1b:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools