CVE-2011-3441: Apple iPhone OS

Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.

libinfo in Apple iOS before 5.0.1 does not properly formulate domain-name queries, which allows remote attackers to obtain sensitive information via a crafted DNS hostname.

Affected products

• Apple iPhone OS: up to and including 5.0; version 1.0 only; version 1.0.0 only; version 1.0.1 only; version 1.0.2 only; version 1.1 only; …

Published 2011-11-11. Last modified 2026-06-16.