CVE-2008-3214 Denial of service in n/a

High 7.8 Published 18 Jul 2008 Updated 7 Aug 2024

Remote attackers can crash the dnsmasq daemon by sending malformed DHCP requests, causing a denial of service for network clients.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2008-3214?

CVE-2008-3214 is a high-severity denial of service vulnerability in n/a, published on 18 Jul 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

dnsmasq 2.25 allows remote attackers to cause a denial of service (daemon crash) by (1) renewing a nonexistent lease or (2) sending a DHCPREQUEST for an IP address that is not in the same network, related to the DHCP NAK response from the daemon.

Weakness: CWE-20

Which versions are affected by CVE-2008-3214?

It affects 1 product.

Products include Thekelleys Dnsmasq.

How do I fix CVE-2008-3214?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2008-3214 being exploited?

There is no known exploitation of CVE-2008-3214 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2008-3214, GHSA-q354-p7j8-f3fx.