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A use-after-free vulnerability was found in unserialize() with Unexpected Session Deserialization. Upstream bug: https://bugs.php.net/bug.php?id=72562 Upstream patch: http://git.php.net/?p=php-src.git;a=commit;h=3798eb6fd5dddb211b01d41495072fd9858d4e32 CVE assignment: http://seclists.org/oss-sec/2016/q3/137
Created php tracking bugs for this issue: Affects: fedora-all [bug 1359837]
This issue happens when untrusted input is unserialized. Doing so it 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.
This issue has been addressed in the following products: Red Hat Software Collections for Red Hat Enterprise Linux 6 Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7 Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS Via RHSA-2016:2750 https://rhn.redhat.com/errata/RHSA-2016-2750.html