CVE-2010-3696 Denial of service in n/a

Medium 4.3 Published 7 Oct 2010 Updated 7 Aug 2024

Remote attackers can cause a denial of service in FreeRADIUS via a malformed DHCP packet in non-default builds.

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

What is CVE-2010-3696?

CVE-2010-3696 is a medium-severity denial of service vulnerability in n/a, published on 7 Oct 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The fr_dhcp_decode function in lib/dhcp.c in FreeRADIUS 2.1.9, in certain non-default builds, does not properly handle the DHCP Relay Agent Information option, which allows remote attackers to cause a denial of service (infinite loop and daemon outage) via a packet that has more than one sub-option. NOTE: some of these details are obtained from third party information.

Weakness: CWE-399

Which versions are affected by CVE-2010-3696?

It affects 1 product.

Products include Freeradius Freeradius.

How do I fix CVE-2010-3696?

Apply the vendor's patch.

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-2010-3696 being exploited?

There is no known exploitation of CVE-2010-3696 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2010-3696, GHSA-63v7-hqpp-9687.