CVE-2006-4436

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.

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 0.66%

Vendor Advisory openbsd.org Vendor Advisory debian.org Vendor Advisory openbsd.org Vendor Advisory secunia.com

Affected: n/a n/a

References

Link	Tags
http://www.openbsd.org/errata38.html#isakmpd	vendor advisory
http://www.osvdb.org/28194	vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/28645	vdb entry
http://securitytracker.com/id?1016757	vdb entry patch
http://secunia.com/advisories/21652	third party advisory patch vendor advisory
http://www.debian.org/security/2006/dsa-1175	vendor advisory
http://www.securityfocus.com/bid/19712	vdb entry patch
http://secunia.com/advisories/21905	third party advisory
http://www.openbsd.org/errata.html#isakmpd	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2006-4436?: CVE-2006-4436 has been scored as a medium severity vulnerability.
How to fix CVE-2006-4436?: To fix CVE-2006-4436, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2006-4436 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2006-4436 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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