Vulnerability Details : CVE-2016-5114
sapi/fpm/fpm/fpm_log.c in PHP before 5.5.31, 5.6.x before 5.6.17, and 7.x before 7.0.2 misinterprets the semantics of the snprintf return value, which allows attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read and buffer overflow) via a long string, as demonstrated by a long URI in a configuration with custom REQUEST_URI logging.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-5114
Probability of exploitation activity in the next 30 days: 1.16%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 83 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-5114
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:P |
10.0
|
4.9
|
[email protected] |
|
9.1
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
3.9
|
5.2
|
[email protected] |
CWE ids for CVE-2016-5114
-
The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: [email protected] (Primary)
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: [email protected] (Primary)
References for CVE-2016-5114
-
https://bugs.php.net/bug.php?id=70755
Exploit
-
http://github.com/php/php-src/commit/2721a0148649e07ed74468f097a28899741eb58f?w=1
-
http://www.openwall.com/lists/oss-security/2016/05/29/1
Release Notes
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
-
http://www.search-lab.hu/about-us/news/111-some-unusual-vulnerabilities-in-the-php-engine
Patch;Third Party Advisory
-
http://php.net/ChangeLog-7.php
Patch;Release Notes
-
http://php.net/ChangeLog-5.php
Patch;Release Notes
Products affected by CVE-2016-5114
- 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:5.6.0: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:5.6.2:*:*:*:*:*:*:*
- 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:7.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*
- 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:7.0.0:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*