(Pwn2Own) Silicon Labs Gecko OS DNS Response Processing Infinite Loop Denial-of-Service Vulnerability

Vulnerability Details

This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Silicon Labs Gecko OS. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the processing of DNS responses. The issue results from a logic error that can lead to an infinite loop. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

Additional Details

Silicon Labs has issued an update to correct this vulnerability. More details can be found at:
https://community.silabs.com/a45Vm0000000Atp

Disclosure Timeline

• 2024-02-12 - Vulnerability reported to vendor
• 2024-06-21 - Coordinated public release of advisory
• 2025-03-26 - Advisory Updated

Credit

PCAutomotive

Back to Advisories