Vulnerability Details : CVE-2016-5095
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.
Vulnerability category: OverflowDenial of service
Threat overview for CVE-2016-5095
Top countries where our scanners detected CVE-2016-5095
Top open port discovered on systems with this issue
80
IPs affected by CVE-2016-5095 143,619
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2016-5095
Probability of exploitation activity in the next 30 days: 2.11%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 88 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-5095
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
8.6
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
3.9
|
4.7
|
NIST |
CWE ids for CVE-2016-5095
-
The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-5095
-
https://gist.github.com/8ef775c117d84ff15185953990a28576
Patch for 72135 ยท GitHub
-
http://www.openwall.com/lists/oss-security/2016/05/26/3
oss-security - Re: Fwd: CVE for PHP 5.5.36 issuesRelease Notes
-
http://www.securityfocus.com/bid/92144
PHP 'php_filter_full_special_chars()' Function Integer Overflow Vulnerability
-
https://bugs.php.net/bug.php?id=72135
PHP :: Sec Bug #72135 :: Integer Overflow in php_html_entities()
-
http://www.debian.org/security/2016/dsa-3602
Debian -- Security Information -- DSA-3602-1 php5
-
http://php.net/ChangeLog-5.php
PHP: PHP 5 ChangeLogRelease Notes
Products affected by CVE-2016-5095
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.13:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.14:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.21:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.17:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.15:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.16:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*