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.
http://php.net/ChangeLog-5.php
http://www.debian.org/security/2016/dsa-3602
http://www.openwall.com/lists/oss-security/2016/05/26/3
http://www.securityfocus.com/bid/92144
Source: MITRE
Published: 2016-08-07
Updated: 2016-11-28
Type: CWE-190
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
Base Score: 8.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Impact Score: 4.7
Exploitability Score: 3.9
Severity: HIGH