CVE-2024-5256 — MEDIUM (4.3)

Vulnerability Description

Sonos Era 100 SMB2 Message Handling Integer Underflow Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sonos Era 100 smart speakers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SMB2 messages. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before reading from memory. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-22336.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Sonos	Era 100 Firmware	15.9
Sonos	Era 100	All versions

Related Weaknesses (CWE)

CWE-191

References

https://www.zerodayinitiative.com/advisories/ZDI-24-542/Third Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-24-542/Third Party AdvisoryVDB Entry

FAQ

What is CVE-2024-5256?

CVE-2024-5256 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Sonos Era 100 SMB2 Message Handling Integer Underflow Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installat...

How severe is CVE-2024-5256?

CVE-2024-5256 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2024-5256?

Check the references section above for vendor advisories and patch information. Affected products include: Sonos Era 100 Firmware, Sonos Era 100.