| Package | Affected versions | Patched versions |
|---|---|---|
| php | ≥ 8.0.0, < 8.0.11< 7.4.24 | 8.0.117.4.24 |
The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact by leveraging a script's use of .= with a long string.
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