CVE-2023-51392: Silicon Labs EFR32xxx parts with classic key storage do not use hardware accelerated AES-CCM
First published: Fri Feb 23 2024(Updated: )
Ember ZNet between v7.2.0 and v7.4.0 used software AES-CCM instead of integrated hardware cryptographic accelerators, potentially increasing risk of electromagnetic and differential power analysis sidechannel attacks.
Credit: product-security@silabs.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Silicon Labs Ember ZNet SDK | >=7.2.0<=7.2.4 | |
| Silicon Labs Ember ZNet SDK | >=7.2.0<7.4.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-51392?
CVE-2023-51392 has a moderate severity due to its potential for side-channel attacks.
How do I fix CVE-2023-51392?
To fix CVE-2023-51392, update your Ember ZNet SDK to a version above 7.4.0.
Which versions of Silicon Labs Ember ZNet are affected by CVE-2023-51392?
CVE-2023-51392 affects Ember ZNet SDK versions between 7.2.0 and 7.4.0.
What type of attacks does CVE-2023-51392 expose systems to?
CVE-2023-51392 potentially exposes systems to electromagnetic and differential power analysis side-channel attacks.
Is there a workaround for CVE-2023-51392?
There are no confirmed workarounds for CVE-2023-51392, so upgrading is the recommended solution.
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