A use-after-free vulnerability was found in unserialize(). Upstream bug: https://bugs.php.net/bug.php?id=72978 Upstream patch: https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17 CVE assignment: http://seclists.org/oss-sec/2016/q4/658
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.
Created php tracking bugs for this issue: Affects: fedora-all [bug 1404737]
This issue happens when untrusted input is unserialized. Doing so is documented as being unsafe: http://php.net/manual/en/function.wddx-deserialize.php#refsect1-function.wddx-deserialize-notes Warning Do not pass untrusted user input to wddx_deserialize(). 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.
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 7.3 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS Via RHSA-2018:1296 https://access.redhat.com/errata/RHSA-2018:1296