CVE-2003-0026 Memory corruption in n/a

High 7.5 Published 16 Jan 2003 Updated 8 Aug 2024

Remote attackers can execute arbitrary code on ISC DHCP servers via a stack-based buffer overflow in the minires library triggered by a long hostname in a DHCP message.

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

What is CVE-2003-0026?

CVE-2003-0026 is a high-severity memory corruption vulnerability in n/a, published on 16 Jan 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple stack-based buffer overflows in the error handling routines of the minires library, as used in the NSUPDATE capability for ISC DHCPD 3.0 through 3.0.1RC10, allow remote attackers to execute arbitrary code via a DHCP message containing a long hostname.

Which versions are affected by CVE-2003-0026?

It affects 1 product.

Products include Isc Dhcpd.

How do I fix CVE-2003-0026?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2003-0026 being exploited?

There is no known exploitation of CVE-2003-0026 in the wild and no public exploit code.

Sources

Also known as DSA-231, GHSA-jgfq-29vq-wj6m.