Unrated severityNVD Advisory· Published May 4, 2004· Updated Jun 16, 2026

CVE-2004-0220

Description

isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an ISAKMP packet with a malformed Cert Request payload, which causes an integer underflow that is used in a malloc operation that is not properly handled, as demonstrated by the Striker ISAKMP Protocol Test Suite.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

OpenBSD/OpenBSD
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
Range: <=3.4
OpenBSD/isakmpdllm-fuzzy
Range: <=3.4

Patches

Vulnerability mechanics

References

www.openbsd.org/errata.htmlnvdPatch
www.kb.cert.org/vuls/id/223273nvdUS Government Resource
marc.infonvd
www.rapid7.com/advisories/R7-0018.htmlnvd
www.securityfocus.com/bid/9907nvd
www.securitytracker.com/alerts/2004/Mar/1009468.htmlnvd
exchange.xforce.ibmcloud.com/vulnerabilities/15629nvd

News mentions

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