CVE-2008-5103: Dcgrendel Vmbuilder

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

The (1) python-vm-builder and (2) ubuntu-vm-builder implementations in VMBuilder 0.9 in Ubuntu 8.10 omit the -e option when invoking chpasswd with a root:! argument, which configures the root account with a cleartext password of ! (exclamation point) and allows attackers to bypass intended login restrictions.

Affected products

• Dcgrendel Vmbuilder: version 0.9 only

Published 2008-11-17. Last modified 2026-06-16.