CVE-2018-4011
7.5 · HIGHOverview
CVE-2018-4011 is a high-severity vulnerability affecting getcujo smart_firewall. It was published on March 21, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An exploitable integer underflow vulnerability exists in the mdnscap binary of the CUJO Smart Firewall, version 7003. When parsing SRV records in an mDNS packet, the "RDLENGTH" value is handled incorrectly, leading to an out-of-bounds access that crashes the mdnscap process. An unauthenticated attacker can send an mDNS message to trigger this vulnerability.
Remediation
Check the references section for vendor advisories and patches from getcujo. Update smart_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2018-4011?
CVE-2018-4011 is a high-severity vulnerability affecting getcujo smart_firewall. It was published on March 21, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2018-4011?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-4011?
Check the references section for vendor advisories and patches from getcujo. Update smart_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-4011?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-4011 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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