Vulnerability Details : CVE-2016-6296
Potential exploit
Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2016-6296
- 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:7.0.5:*:*:*:*:*:*:*
- 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:7.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
- 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:7.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
- 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: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:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.23:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.22:*:*:*:*:*:*:*
Threat overview for CVE-2016-6296
Top countries where our scanners detected CVE-2016-6296
Top open port discovered on systems with this issue
80
IPs affected by CVE-2016-6296 478,964
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2016-6296!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2016-6296
10.69%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 93 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-6296
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2016-6296
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-6296
-
https://security.gentoo.org/glsa/201611-22
PHP: Multiple vulnerabilities (GLSA 201611-22) — Gentoo security
-
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
Apple - Lists.apple.com
-
https://lists.debian.org/debian-lts-announce/2019/11/msg00029.html
[SECURITY] [DLA 2011-1] xmlrpc-epi security update
-
http://www.securitytracker.com/id/1036430
PHP Multiple Flaws Let Remote and Local Users Obtain Potentially Sensitive Information and Execute Arbitrary Code - SecurityTracker
-
http://www.debian.org/security/2016/dsa-3631
Debian -- Security Information -- DSA-3631-1 php5
-
http://git.php.net/?p=php-src.git;a=commit;h=e6c48213c22ed50b2b987b479fcc1ac709394caa
208.43.231.11 Git - php-src.git/commitIssue Tracking
-
http://www.ubuntu.com/usn/USN-3059-1
USN-3059-1: xmlrpc-epi vulnerability | Ubuntu security notices
-
http://www.securityfocus.com/bid/92095
PHP '/xmlrpc/libxmlrpc/simplestring.c' Heap Buffer Overflow VulnerabilityThird Party Advisory;VDB Entry
-
https://bugs.php.net/72606
PHP :: Sec Bug #72606 :: heap-buffer-overflow (write) simplestring_addn simplestring.cExploit;Issue Tracking
-
https://support.apple.com/HT207170
About the security content of macOS Sierra 10.12 - Apple Support
-
http://rhn.redhat.com/errata/RHSA-2016-2750.html
RHSA-2016:2750 - Security Advisory - Red Hat Customer Portal
-
http://php.net/ChangeLog-7.php
PHP: PHP 7 ChangeLogRelease Notes
-
http://openwall.com/lists/oss-security/2016/07/24/2
oss-security - Re: Fwd: CVE for PHP 5.5.38 issuesMailing List
-
http://php.net/ChangeLog-5.php
PHP: PHP 5 ChangeLogRelease Notes
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