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CVE-2015-3204

5.0 · MEDIUM

libreswan 3.9 through 3.12 allows remote attackers to cause a denial of service (daemon restart) via an IKEv1 packet with (1) unassigned bits set in the IPSEC DOI value or (2) the next payload valu…

Published Jul 1, 2015libreswanCWE-20EPSS 2.60%

Overview

CVE-2015-3204 is a medium-severity vulnerability affecting libreswan libreswan. It was published on July 1, 2015 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

libreswan 3.9 through 3.12 allows remote attackers to cause a denial of service (daemon restart) via an IKEv1 packet with (1) unassigned bits set in the IPSEC DOI value or (2) the next payload value set to ISAKMP_NEXT_SAK.

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

VendorProductVersionsStatus

References

Refrhn.redhat.com/errata/RHSA-2015-1154.htmlRefwww.securityfocus.com/bid/75392Reflibreswan.org/security/CVE-2015-3204/CVE-2015-3204.txtRefsecurity.gentoo.org/glsa/201603-13Refrhn.redhat.com/errata/RHSA-2015-1154.htmlRefwww.securityfocus.com/bid/75392Reflibreswan.org/security/CVE-2015-3204/CVE-2015-3204.txtRefsecurity.gentoo.org/glsa/201603-13

How CyberStrike helps

Frequently asked questions

What is CVE-2015-3204?

CVE-2015-3204 is a medium-severity vulnerability affecting libreswan libreswan. It was published on July 1, 2015 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2015-3204?

This vulnerability has a CVSS 2.0 base score of 5.0, 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-2015-3204?

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-2015-3204?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-3204 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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