CVE-2018-4002

An exploitable denial-of-service vulnerability exists in the mdnscap binary of the CUJO Smart Firewall running firmware 7003. When parsing labels in mDNS packets, the firewall unsafely handles label compression pointers, leading to an uncontrolled recursion that eventually exhausts the stack, crashing the mdnscap process. An unauthenticated attacker can send an mDNS message to trigger this vulnerability.

CVSS v3 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0671	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:cujo:smart_firewall_firmware:7003:*:*:*:*:*:*:*

cpe:2.3:h:cujo:smart_firewall:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-10-31 21:15

Updated : 2024-02-28 17:28

NVD link : CVE-2018-4002

Mitre link : CVE-2018-4002

CVE.ORG link : CVE-2018-4002

JSON object : View

Products Affected

cujo

smart_firewall
smart_firewall_firmware

CWE

CWE-674

Uncontrolled Recursion

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