CVE-2007-3409: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3.5% chance of exploitation in the next 30 days.

Net::DNS before 0.60, a Perl module, allows remote attackers to cause a denial of service (stack consumption) via a malformed compressed DNS packet with self-referencing pointers, which triggers an infinite loop.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 6.10 only
• Debian Debian Linux: version 3.1 only; version 4.0 only
• Net-DNS Net::dns: before 0.60 (fixed in 0.60)

Published 2007-06-26. Last modified 2026-06-16.