CVE-2009-4418

The unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences.

• php php (<= 5.3.0) • php php 5 • php php 5.0 • php php 5.0.0 • php php 5.0.1 • php php 5.0.2 • php php 5.0.3 • php php 5.0.4 • php php 5.0.5 • php php 5.1.0 • php php 5.1.1 • php php 5.1.2 • php php 5.1.3 • php php 5.1.4 • php php 5.1.5 • php php 5.1.6 • php php 5.2.0 • php php 5.2.1 • php php 5.2.2 • php php 5.2.3 • php php 5.2.4 • php php 5.2.5 • php php 5.2.6 • php php 5.2.7 • php php 5.2.8 • php php 5.2.9 • php php 5.2.10 • php php 5.2.11