Internet Bug Bounty: heap buffer overflow in phar_detect_phar_fname_ext

The original report is here https://bugs.php.net/bug.php?id=77247 txt USEZENDALLOC=0 ./php-src-PHP-7.2.13/sapi/cli/php -r "vardumpnew Pharfilegetcontents'poc.phar',0,'test.phar';" txt ================================================================= ==44888==ERROR: AddressSanitizer:...