CVE-2014-9402: Canonical Ubuntu Linux

High severity, CVSS 7.8. EPSS: 7.8% chance of exploitation in the next 30 days.

The nss_dns implementation of getnetbyname in GNU C Library (aka glibc) before 2.21, when the DNS backend in the Name Service Switch configuration is enabled, allows remote attackers to cause a denial of service (infinite loop) by sending a positive answer while a network name is being process.

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 12.04 only; version 14.04 only; version 14.10 only
• GNU Glibc: up to and including 2.20
• Opensuse Opensuse: version 13.1 only; version 13.2 only

Published 2015-02-24. Last modified 2026-06-17.