CVE-2018-3985 HIGH

CVE-2018-3985

Vendor N/A
Product CUJO
Published March 21, 2019
Last update August 5, 2024

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

An exploitable double free vulnerability exists in the mdnscap binary of the CUJO Smart Firewall. When parsing mDNS packets, a memory space is freed twice if an invalid query name is encountered, leading to arbitrary code execution in the context of the mdnscap process. An unauthenticated attacker can send an mDNS message to trigger this vulnerability.

Key dates

02Disclosure timeline

March 21, 2019 CVE published
August 5, 2024 Record updated