Bug #71864 [NEW]: php serialize function cycle lead to stack exhausted

From: niubl at knownsec dot com Operating system: linux kali PHP version: 7.0.5RC1 Package: Scripting Engine problem Bug Type: Bug Bug description:php serialize function cycle lead to stack exhausted Description: ------------ when php serialize a user define serialize class and this class's serialize function serialize its clone object, it lead to a cycle and stack exhausted Test script: --------------- <?php class A implements Serializable { public function serialize() { return serialize(clone $this); } public function unserialize($data) { } } serialize(new A()); ?> -- Edit bug report at https://bugs.php.net/bug.php?id=71864&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71864&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71864&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71864&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71864&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71864&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71864&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71864&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71864&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71864&r=support Expected behavior: https://bugs.php.net/fix.php?id=71864&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71864&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71864&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71864&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71864&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71864&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71864&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71864&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71864&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71864&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71864&r=mysqlcfg