One Speaker: Integer Underflow (Wrap or Wraparound)
CVE-2022-24046 is a high-severity integer underflow (wrap or wraparound) vulnerability in One Speaker from Sonos, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 4.08% chance of exploitation within 30 days, which is in the top 9.12% of all scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update S1 to 11.2.13 or a later version.
- Update S2 to 3.4.1 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Sonos | One Speaker | Not specified in the record | Not stated |
| Sonos | S1 | before 11.2.13 | 11.2.13 |
| Sonos | S2 | before 3.4.1 | 3.4.1 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 3.0 | 9.8 | Critical | CNA (trendmicro.com) |
| CVSS 2.0 | 8.3 | High | NVD |
Official description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sonos One Speaker prior to 3.4.1 (S2 systems) and 11.2.13 build 57923290 (S1 systems). 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. Was ZDI-CAN-15828.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Integer Underflow (Wrap or Wraparound)
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
More Integer Underflow (Wrap or Wraparound) vulnerabilities (CWE-191)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- zerodayinitiative.com/advisories/ZDI-22-260/Third Party Advisory, VDB Entry
Other vulnerabilities in One Speaker
- 8.8 High severity
- 8.8 High severity
- 9.8 Critical severity
Recent Integer Underflow (Wrap or Wraparound) vulnerabilities
- 8.4 High severity
Linux Kernel Heap-Based Buffer Overflow Exploited
- 7.8 High severity
- 7.8 High severity
- 9.8 Critical severity
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