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CVE-2006-3122

5.0 · MEDIUM

The supersede_lease function in memory.c in ISC DHCP (dhcpd) server 2.0pl5 allows remote attackers to cause a denial of service (application crash) via a DHCPDISCOVER packet with a 32 byte client-i…

Published Aug 9, 2006iscCWE-399EPSS 4.02%

Overview

CVE-2006-3122 is a medium-severity vulnerability affecting isc dhcpd. It was published on August 9, 2006 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

The supersede_lease function in memory.c in ISC DHCP (dhcpd) server 2.0pl5 allows remote attackers to cause a denial of service (application crash) via a DHCPDISCOVER packet with a 32 byte client-identifier, which causes the packet to be interpreted as a corrupt uid and causes the server to exit with "corrupt lease uid."

Remediation

Check the references section for vendor advisories and patches from isc. Update dhcpd 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
iscdhcpd0Affected

References

Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=380273Refsecunia.com/advisories/21345Refsecunia.com/advisories/21363Refsecunia.com/advisories/21655Refsecuritytracker.com/id?1016755Refwww.debian.org/security/2006/dsa-1143Refwww.openbsd.org/errata.html#dhcpdRefwww.securityfocus.com/bid/19348Refwww.vupen.com/english/advisories/2006/3158Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=380273

How CyberStrike helps

Frequently asked questions

What is CVE-2006-3122?

CVE-2006-3122 is a medium-severity vulnerability affecting isc dhcpd. It was published on August 9, 2006 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2006-3122?

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-2006-3122?

Check the references section for vendor advisories and patches from isc. Update dhcpd 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-2006-3122?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-3122 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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