A use after free vulnerability was found in unserialize(). Upstream bug: https://bugs.php.net/bug.php?id=73147 Upstream patch: https://git.php.net/?p=php-src.git;a=commit;h=0e6fe3a4c96be2d3e88389a5776f878021b4c59f CVE assignment: http://seclists.org/oss-sec/2016/q4/296
Created php tracking bugs for this issue: Affects: fedora-all [bug 1391008]
This issue happens when untrusted input is unserialized. Doing so is documented as being unsafe: http://php.net/manual/en/function.unserialize.php Do not pass untrusted user input to unserialize(). Unserialization can result in code being loaded and executed due to object instantiation and autoloading, and a malicious user may be able to exploit this. Use a safe, standard data interchange format such as JSON (via json_decode() and json_encode()) if you need to pass serialized data to the user.