CVE-2003-0039 Denial of service in n/a
Remote attackers can cause a denial of service in ISC dhcrelay by sending a specific BOOTP packet that triggers an infinite loop.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2003-0039?
CVE-2003-0039 is a medium-severity denial of service vulnerability in n/a, published on 1 Sep 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ISC dhcrelay (dhcp-relay) 3.0rc9 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (packet storm) via a certain BOOTP packet that is forwarded to a broadcast MAC address, causing an infinite loop that is not restricted by a hop count.
Which versions are affected by CVE-2003-0039?
It affects 1 product.
Products include Isc Dhcpd.
How do I fix CVE-2003-0039?
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-2003-0039 being exploited?
There is no known exploitation of CVE-2003-0039 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DSA-245, GHSA-h2v9-xvmg-qcc7.