CVE-2015-3240
4.3 · MEDIUMOverview
CVE-2015-3240 is a medium-severity vulnerability affecting libreswan libreswan. It was published on November 9, 2015 and has a CVSS 2.0 base score of 4.3 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.
Remediation
Check the references section for vendor advisories and patches from libreswan. Update libreswan 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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References
Frequently Asked Questions
What is CVE-2015-3240?
CVE-2015-3240 is a medium-severity vulnerability affecting libreswan libreswan. It was published on November 9, 2015 and has a CVSS 2.0 base score of 4.3 (MEDIUM).
How severe is CVE-2015-3240?
This vulnerability has a CVSS 2.0 base score of 4.3, 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-2015-3240?
Check the references section for vendor advisories and patches from libreswan. Update libreswan 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-2015-3240?
CyberStrike's AI-powered security agents can automatically detect CVE-2015-3240 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.
How CyberStrike Helps
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