CVE-2008-4220: Apple Mac OS X

High severity, CVSS 10.0. EPSS: 3.5% chance of exploitation in the next 30 days.

Integer overflow in the inet_net_pton API in Libsystem in Apple Mac OS X before 10.5.6 allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors. NOTE: this may be related to the WLB-2008080064 advisory published by SecurityReason on 20080822; however, as of 20081216, there are insufficient details to be sure.

Affected products

• Apple Mac OS X: up to and including 10.5.5; version 10.4.11 only; version 10.5 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; …
• Apple Mac OS X Server: up to and including 10.5.5; version 10.4.11 only; version 10.5 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; …

Published 2008-12-17. Last modified 2026-06-16.