CVE-2016-7418: Buffer Overflow
First published: Sat Sep 17 2016(Updated: )
The php_wddx_push_element function in ext/wddx/wddx.c in PHP before 5.6.26 and 7.x before 7.0.11 allows remote attackers to cause a denial of service (invalid pointer access and out-of-bounds read) or possibly have unspecified other impact via an incorrect boolean element in a wddxPacket XML document, leading to mishandling in a wddx_deserialize call.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/php | <5.6.26 | 5.6.26 |
| redhat/php | <7.0.11 | 7.0.11 |
| PHP | <7.0.11 | 7.0.11 |
| PHP | <=5.6.25 | |
| PHP | =7.0.0 | |
| PHP | =7.0.1 | |
| PHP | =7.0.2 | |
| PHP | =7.0.3 | |
| PHP | =7.0.4 | |
| PHP | =7.0.5 | |
| PHP | =7.0.6 | |
| PHP | =7.0.7 | |
| PHP | =7.0.8 | |
| PHP | =7.0.9 | |
| PHP | =7.0.10 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2016/09/15/10
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/93011
- http://www.securitytracker.com/id/1036836
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=73065
- https://github.com/php/php-src/commit/c4cca4c20e75359c9a13a1f9a36cb7b4e9601d29?w=1
- https://security.gentoo.org/glsa/201611-22
- https://www.tenable.com/security/tns-2016-19
- https://www.php.net/ChangeLog-7.php#7.0.11 (Advisory)
- http://seclists.org/oss-sec/2016/q3/518
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1377366
- http://php.net/manual/en/function.unserialize.php
- https://bugzilla.redhat.com/show_bug.cgi?id=1377352
Frequently Asked Questions
What is the severity of CVE-2016-7418?
CVE-2016-7418 has been classified as a denial of service vulnerability due to invalid pointer access and out-of-bounds read.
How do I fix CVE-2016-7418?
To mitigate CVE-2016-7418, upgrade PHP to version 5.6.26 or 7.0.11 or later.
What versions of PHP are affected by CVE-2016-7418?
CVE-2016-7418 affects PHP versions prior to 5.6.26 and prior to 7.0.11.
Can CVE-2016-7418 lead to data loss?
CVE-2016-7418 does not directly indicate data loss but may cause service disruption due to denial of service.
Who is the vendor associated with CVE-2016-7418?
The vendor associated with CVE-2016-7418 is PHP, which oversees the PHP programming language.
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