CVE-2024-2502

LOW

Improper Check for Unusual or Exceptional Conditions (CWE-754)

2024-08-29 product-security@silabs.com

Information Disclosure

2.0

CVSS 3.1 · Vendor: silabs

Severity by source

Vendor (silabs) PRIMARY

2.0 LOW

AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary rating from Vendor (silabs) · only source for this CVE.

CVSS VectorVendor: silabs

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

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Aug 29, 2024 - 22:15 cve.org

LOW 2.0

DescriptionCVE.org

An application can be configured to block boot attempts after consecutive tamper resets are detected, which may not occur as expected.

This is possible because the TAMPERRSTCAUSE register may not be properly updated when a level 4 tamper event (a tamper reset) occurs. This impacts Series 2 HSE-SVH devices, including xG23B, xG24B, xG25B, and xG28B, but does not impact xG21B. To mitigate this issue, upgrade to SE Firmware version 2.2.6 or later.

AnalysisAI

An application can be configured to block boot attempts after consecutive tamper resets are detected, which may not occur as expected. Rated low severity (CVSS 2.0), this vulnerability is no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-754. An application can be configured to block boot attempts after consecutive tamper resets are detected, which may not occur as expected. This is possible because the TAMPERRSTCAUSE register may not be properly updated when a level 4 tamper event (a tamper reset) occurs. This impacts Series 2 HSE-SVH devices, including xG23B, xG24B, xG25B, and xG28B, but does not impact xG21B. To mitigate this issue, upgrade to SE Firmware version 2.2.6 or later. Version information: version 2.2.6.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.