CVE-2023-41097 Potential Timing vulnerability in CBC PKCS7 padding calculations

Medium 4.6 Published Updated

Timing discrepancies in CBC PKCS7 padding allow padding oracle attacks, potentially exposing encrypted data in Silicon Labs GSDK.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-41097?

CVE-2023-41097 is a medium-severity vulnerability in silabs.com GSDK, published on 21 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An Observable Timing Discrepancy, Covert Timing Channel vulnerability in Silabs GSDK on ARM potentially allows Padding Oracle Crypto Attack on CBC PKCS7.This issue affects GSDK: through 4.4.0.

Weakness: CWE-203, CWE-327, CWE-208

Which versions are affected by CVE-2023-41097?

It affects 1 product.

Products include Silabs Gecko Software Development Kit.

How do I fix CVE-2023-41097?

No fix has been published for CVE-2023-41097 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-41097 being exploited?

There is no known exploitation of CVE-2023-41097 in the wild and no public exploit code.

Sources

Also known as GHSA-67c4-7f3g-r556.

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