Quick answers
- Is CVE-2016-10162 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2016-10162 being exploited in the wild.
- How severe is CVE-2016-10162?
- High severity, with a CVSS score of 7.5, published 24 January 2017.
- Which products and versions are affected?
- PHP Group PHP 7.0.x before 7.0.15, 7.1.x before 7.1.1.
- Is there a fix for CVE-2016-10162?
- A patch was published on 2017-01-19: PHP 7.0.15 and 7.1.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2016-10162 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2016-10162?
- Check whether you run PHP Group PHP at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A NULL pointer dereference exists in the php_wddx_pop_element function within ext/wddx/wddx.c. The vulnerability is triggered during the deserialization of a WDDX packet when an inapplicable class name (such as an interface or abstract class) is provided. The object_init_ex function fails to instantiate these types and returns a NULL object pointer, which is subsequently mishandled by the wddx_deserialize call. A remote, unauthenticated attacker can exploit this by submitting a malicious XML document to a PHP script that processes WDDX data, leading to an immediate process crash. This issue was resolved in PHP versions 7.0.15 and 7.1.1.
Affected products
- PHP Group PHP 7.0.x before 7.0.15, 7.1.x before 7.1.1
Timeline
- 2016-12-29: disclosed: Bug reported to PHP bug tracker
- 2017-01-24: advisory: NVD published the CVE record
- 2017-01-19: patched: PHP 7.0.15 and 7.1.1 released