Advisory Details

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos One Speaker. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the anacapd daemon. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of root.

Fixed in S2 software version 13.4.1 or later and S1 software version 11.2.13 build 57923290 or later.

• 2021-12-01 - Vulnerability reported to vendor
• 2022-02-14 - Coordinated public release of advisory
• 2022-12-09 - Advisory Updated