| Package | Affected versions | Patched versions |
|---|---|---|
| php | ≥ 5.0.0, ≤ 5.2.1≤ 4.4.6 |
The array_user_key_compare function in PHP 4.4.6 and earlier, and 5.x up to 5.2.1, makes erroneous calls to zval_dtor, which triggers memory corruption and allows local users to bypass safe_mode and execute arbitrary code via a certain unset operation after array_user_key_compare has been called.
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