Bug #72540 [NEW]: yaml_parse_url assertion

From: fernando at null-life dot com Operating system: * PHP version: 7.0.8 Package: Reproducible crash Bug Type: Bug Bug description:yaml_parse_url assertion Description: ------------ yaml_parse_url fails with an abort when the passed stream/file is empty, maybe an exception/error should be returned here. Test script: --------------- <?php touch("x"); $v1="x"; $v2=3; yaml_parse_url($v1, $v2); Expected result: ---------------- no crash Actual result: -------------- crash pwneable:matatetete fmunozs$ php x.php Assertion failed: (input), function yaml_parser_set_input_string, file api.c, line 288. Abort trap: 6 -- Edit bug report at https://bugs.php.net/bug.php?id=72540&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72540&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72540&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72540&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72540&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72540&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72540&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72540&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72540&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72540&r=support Expected behavior: https://bugs.php.net/fix.php?id=72540&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72540&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72540&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72540&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72540&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72540&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72540&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72540&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72540&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72540&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72540&r=mysqlcfg