CVE-2016-5095: Integer Overflow
First published: Sun Aug 07 2016(Updated: )
Integer overflow in the php_escape_html_entities_ex function in ext/standard/html.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a large output string from a FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var call. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-5094.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | <=5.5.35 | |
| PHP | =5.6.0-alpha1 | |
| PHP | =5.6.0-alpha2 | |
| PHP | =5.6.0-alpha3 | |
| PHP | =5.6.0-alpha4 | |
| PHP | =5.6.0-alpha5 | |
| PHP | =5.6.0-beta1 | |
| PHP | =5.6.0-beta2 | |
| PHP | =5.6.0-beta3 | |
| PHP | =5.6.0-beta4 | |
| PHP | =5.6.1 | |
| PHP | =5.6.2 | |
| PHP | =5.6.3 | |
| PHP | =5.6.4 | |
| PHP | =5.6.5 | |
| PHP | =5.6.6 | |
| PHP | =5.6.7 | |
| PHP | =5.6.8 | |
| PHP | =5.6.9 | |
| PHP | =5.6.10 | |
| PHP | =5.6.11 | |
| PHP | =5.6.12 | |
| PHP | =5.6.13 | |
| PHP | =5.6.14 | |
| PHP | =5.6.15 | |
| PHP | =5.6.16 | |
| PHP | =5.6.17 | |
| PHP | =5.6.18 | |
| PHP | =5.6.19 | |
| PHP | =5.6.20 | |
| PHP | =5.6.21 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2016-5095?
CVE-2016-5095 has a severity rating that could lead to denial of service as a result of an integer overflow in PHP.
How do I fix CVE-2016-5095?
To resolve CVE-2016-5095, upgrade to PHP versions 5.5.36 or later, or to PHP 5.6.22 or later.
What versions of PHP are affected by CVE-2016-5095?
CVE-2016-5095 affects PHP versions prior to 5.5.36 and versions of 5.6.x before 5.6.22.
What type of exploitation is possible with CVE-2016-5095?
CVE-2016-5095 can be exploited by remote attackers to cause a denial of service.
Is there a patch available for CVE-2016-5095?
Yes, the patch for CVE-2016-5095 is included in newer releases of PHP after the vulnerable versions.
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