Уязвимость функции zend_string_extend интерпретатора PHP, позволяющая нарушителю вызвать отказ в обслуживании или оказать другое воздействие

Уязвимость функции ZipArchive::extractTo интерпретатора PHP, позволяющая нарушителю создать или перезаписать файлы

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.

In PHP versions 7.3.x below 7.3.31, 7.4.x below 7.4.24 and 8.0.x below 8.0.11, in Microsoft Windows environment, ZipArchive::extractTo may be tricked into writing a file outside target directory when extracting a ZIP file, thus potentially causing files to be created or overwritten, subject to OS permissions.