CVE-2009-4418
Severity CVSS v4.0:
Pending analysis
Type:
CWE-189
Numeric Errors
Publication date:
24/12/2009
Last modified:
09/04/2025
Description
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.
Impact
Base Score 2.0
5.00
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | 5.3.0 (including) | |
| cpe:2.3:a:php:php:5:*:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:beta1:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:beta2:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:beta3:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:beta4:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:rc1:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:rc2:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.0:rc3:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:* | ||
| cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page