critical9.8
CVE-2017-8923
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 a…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Php | Php | before 7.4.24 from 8.0.0 before 8.0.11 |