CVE-2006-4436

N/A Unknown
Published: August 29, 2006 Modified: April 16, 2026
View on NVD

Description

isakmpd in OpenBSD 3.8, 3.9, and possibly earlier versions, creates Security Associations (SA) with a replay window of size 0 when isakmpd acts as a responder during SA negotiation, which allows remote attackers to replay IPSec packets and bypass the replay protection.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://secunia.com/advisories/21652
Source: cve@mitre.org
Patch Vendor Advisory
http://secunia.com/advisories/21905
Source: cve@mitre.org
http://securitytracker.com/id?1016757
Source: cve@mitre.org
Patch
http://www.debian.org/security/2006/dsa-1175
Source: cve@mitre.org
http://www.openbsd.org/errata.html#isakmpd
Source: cve@mitre.org
http://www.openbsd.org/errata38.html#isakmpd
Source: cve@mitre.org
http://www.osvdb.org/28194
Source: cve@mitre.org
http://www.securityfocus.com/bid/19712
Source: cve@mitre.org
Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/28645
Source: cve@mitre.org
http://secunia.com/advisories/21652
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
http://secunia.com/advisories/21905
Source: af854a3a-2127-422b-91ae-364da2661108
http://securitytracker.com/id?1016757
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
http://www.debian.org/security/2006/dsa-1175
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openbsd.org/errata.html#isakmpd
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openbsd.org/errata38.html#isakmpd
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.osvdb.org/28194
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/19712
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/28645
Source: af854a3a-2127-422b-91ae-364da2661108

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
0.7%
71th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

openbsd