CVE-2016-1904 : Multiple integer overflows in ext/standard/exec.c in PHP 7.x before 7.0.2 allow remote attackers to cause a denial of se

Multiple integer overflows in ext/standard/exec.c in PHP 7.x before 7.0.2 allow remote attackers to cause a denial of service or possibly have unspecified other impact via a long string to the (1) php_escape_shell_cmd or (2) php_escape_shell_arg function, leading to a heap-based buffer overflow.

Published 2016-01-19 05:59:09

Updated 2016-12-07 18:33:13

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowDenial of service

Threat overview for CVE-2016-1904

Top countries where our scanners detected CVE-2016-1904

Top open port discovered on systems with this issue 80

IPs affected by CVE-2016-1904 541

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2016-1904!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2016-1904

Probability of exploitation activity in the next 30 days: 0.96%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 81 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2016-1904

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
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.3	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	3.9	3.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: Low

CWE ids for CVE-2016-1904

CWE-189

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-1904

http://www.securitytracker.com/id/1034608

PHP Bugs May Let Remote Users Obtain Potentially Sensitive Information, Gain Elevated Privileges, or Execute Arbitrary Code - SecurityTracker

CVEs referencing this url
https://github.com/php/php-src/commit/2871c70efaaaa0f102557a17c727fd4d5204dd4b

Patch for Heap Buffer Overflow in EscapeShell · php/php-src@2871c70 · GitHub
https://bugs.php.net/bug.php?id=71270

PHP :: Sec Bug #71270 :: Heap BufferOver Flow in escapeshell functions
Exploit
http://www.php.net/ChangeLog-7.php

PHP: PHP 7 ChangeLog
Vendor Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/01/14/8

oss-security - [CVE Request] Multiple PHP issues

CVEs referencing this url

Products affected by CVE-2016-1904