Vulnerability · Published Aug 29, 2024 · Assigned by Silabs

CVE-2024-2502Failure to update the tamper reset cause register when a tamper event occurs

Low 2.0

In plain English

A low-severity security flaw in SE Firmware from silabs.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)2.0Low

Exploit odds (30 days)0.2%top 93.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
silabs.com	SE Firmware	0 – through 2.2.5

Weakness: CWE-754 · Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

References

https://community.silabs.com/sfc/servlet.shepherd/document/download/069Vm00000BYb5HIAT?operationContext=S1 vendor-advisory, permissions-required