| Package | Affected versions | Patched versions |
|---|---|---|
| php | = 5.4.0= 5.4.1= 5.4.10= 5.4.11= 5.4.12= 5.4.13= 5.4.14= 5.4.2= 5.4.3= 5.4.4= 5.4.5= 5.4.6= 5.4.7= 5.4.8= 5.4.9= 5.5.0≤ 5.4.15≤ 5.5.0 |
The Zend Engine in PHP before 5.4.16 RC1, and 5.5.0 before RC2, does not properly determine whether a parser error occurred, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash) via a crafted function definition, as demonstrated by an attack within a shared web-hosting environment. NOTE: the vendor's http://php.net/security-note.php page says "for critical security situations you should be using OS-level security by running multiple web servers each as their own user id.
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