The proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable.
CVE-2009-4018 is a security vulnerability that . Impacting 1 product from php organizations running these solutions should prioritize assessment and patching.
Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
2009-11-29T13:07:32.017
2025-04-09T00:30:58.490
Deferred
CVSSv2: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | php | php | ≤ 5.2.10 | Yes |
| Application | php | php | 1.0 | Yes |
| Application | php | php | 2.0 | Yes |
| Application | php | php | 2.0b10 | Yes |
| Application | php | php | 3.0 | Yes |
| Application | php | php | 3.0.1 | Yes |
| Application | php | php | 3.0.2 | Yes |
| Application | php | php | 3.0.3 | Yes |
| Application | php | php | 3.0.4 | Yes |
| Application | php | php | 3.0.5 | Yes |
| Application | php | php | 3.0.6 | Yes |
| Application | php | php | 3.0.7 | Yes |
| Application | php | php | 3.0.8 | Yes |
| Application | php | php | 3.0.9 | Yes |
| Application | php | php | 3.0.10 | Yes |
| Application | php | php | 3.0.11 | Yes |
| Application | php | php | 3.0.12 | Yes |
| Application | php | php | 3.0.13 | Yes |
| Application | php | php | 3.0.14 | Yes |
| Application | php | php | 3.0.15 | Yes |
| Application | php | php | 3.0.16 | Yes |
| Application | php | php | 3.0.17 | Yes |
| Application | php | php | 3.0.18 | Yes |
| Application | php | php | 4 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0 | Yes |
| Application | php | php | 4.0.0 | Yes |
| Application | php | php | 4.0.1 | Yes |
| Application | php | php | 4.0.1 | Yes |
| Application | php | php | 4.0.1 | Yes |
| Application | php | php | 4.0.2 | Yes |
| Application | php | php | 4.0.3 | Yes |
| Application | php | php | 4.0.3 | Yes |
| Application | php | php | 4.0.4 | Yes |
| Application | php | php | 4.0.4 | Yes |
| Application | php | php | 4.0.5 | Yes |
| Application | php | php | 4.0.6 | Yes |
| Application | php | php | 4.0.7 | Yes |
| Application | php | php | 4.0.7 | Yes |
| Application | php | php | 4.0.7 | Yes |
| Application | php | php | 4.0.7 | Yes |
| Application | php | php | 4.0.7 | Yes |
| Application | php | php | 4.1.0 | Yes |
| Application | php | php | 4.1.1 | Yes |
| Application | php | php | 4.1.2 | Yes |
| Application | php | php | 4.2 | Yes |
| Application | php | php | 4.2.0 | Yes |
| Application | php | php | 4.2.1 | Yes |
| Application | php | php | 4.2.2 | Yes |
| Application | php | php | 4.2.3 | Yes |
| Application | php | php | 4.3.0 | Yes |
| Application | php | php | 4.3.1 | Yes |
| Application | php | php | 4.3.2 | Yes |
| Application | php | php | 4.3.3 | Yes |
| Application | php | php | 4.3.4 | Yes |
| Application | php | php | 4.3.5 | Yes |
| Application | php | php | 4.3.6 | Yes |
| Application | php | php | 4.3.7 | Yes |
| Application | php | php | 4.3.8 | Yes |
| Application | php | php | 4.3.9 | Yes |
| Application | php | php | 4.3.10 | Yes |
| Application | php | php | 4.3.11 | Yes |
| Application | php | php | 4.4.0 | Yes |
| Application | php | php | 4.4.1 | Yes |
| Application | php | php | 4.4.2 | Yes |
| Application | php | php | 4.4.3 | Yes |
| Application | php | php | 4.4.4 | Yes |
| Application | php | php | 4.4.5 | Yes |
| Application | php | php | 4.4.6 | Yes |
| Application | php | php | 4.4.7 | Yes |
| Application | php | php | 4.4.8 | Yes |
| Application | php | php | 4.4.9 | Yes |
| Application | php | php | 5 | Yes |
| Application | php | php | 5.0 | Yes |
| Application | php | php | 5.0 | Yes |
| Application | php | php | 5.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.0 | Yes |
| Application | php | php | 5.0.1 | Yes |
| Application | php | php | 5.0.2 | Yes |
| Application | php | php | 5.0.3 | Yes |
| Application | php | php | 5.0.4 | Yes |
| Application | php | php | 5.0.5 | Yes |
| Application | php | php | 5.1.0 | Yes |
| Application | php | php | 5.1.1 | Yes |
| Application | php | php | 5.1.2 | Yes |
| Application | php | php | 5.1.3 | Yes |
| Application | php | php | 5.1.4 | Yes |
| Application | php | php | 5.1.5 | Yes |
| Application | php | php | 5.1.6 | Yes |
| Application | php | php | 5.2.0 | Yes |
| Application | php | php | 5.2.2 | Yes |
| Application | php | php | 5.2.4 | Yes |
| Application | php | php | 5.2.6 | Yes |
| Application | php | php | 5.2.7 | Yes |
| Application | php | php | 5.2.8 | Yes |
| Application | php | php | 5.2.9 | Yes |
| Application | php | php | 5.3.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For php's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.