CVE-2009-4016
6.8 · MEDIUMOverview
CVE-2009-4016 is a medium-severity vulnerability affecting ircd-hybrid ircd-hybrid. It was published on February 4, 2010 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Integer underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid before 1.6.8, when flatten_links is disabled, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a LINKS command.
Remediation
Check the references section for vendor advisories and patches from ircd-hybrid. Update ircd-hybrid 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 |
|---|---|---|---|
| ircd-ratbox | ircd-ratbox | 0 | Affected |
| oftc | oftc-hybrid | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2009-4016?
CVE-2009-4016 is a medium-severity vulnerability affecting ircd-hybrid ircd-hybrid. It was published on February 4, 2010 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
How severe is CVE-2009-4016?
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2009-4016?
Check the references section for vendor advisories and patches from ircd-hybrid. Update ircd-hybrid 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-2009-4016?
CyberStrike's AI-powered security agents can automatically detect CVE-2009-4016 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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