CVE-2015-5180: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 6.2% chance of exploitation in the next 30 days.

res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash).

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only
• GNU Glibc: up to and including 2.24

Published 2017-06-27. Last modified 2026-06-17.