PT-2016-1127 · Php · Php

Published 2016-01-19 · Updated 2016-12-07 · CVE-2016-1904

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions PHP versions prior to 7.0.2

Description The issue is caused by multiple integer overflows in the ext/standard/exec.c file of PHP, specifically in the php escape shell cmd and php escape shell arg functions. This can lead to a heap-based buffer overflow when a long string is provided to these functions, potentially allowing remote attackers to cause a denial of service or have other unspecified impacts.

Recommendations For PHP versions prior to 7.0.2, update to version 7.0.2 or later to resolve the issue. As a temporary workaround, consider restricting the input length to the php escape shell cmd and php escape shell arg functions to prevent exploitation.

Exploit

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

BDU:2016-00386

CVE-2016-1904

Affected Products

Php

References · 10

• 🔥 https://bugs.php.net/bug.php?id=71270 · Exploit
• https://bdu.fstec.ru/vul/2016-00386 · Security Note
• http://php.net/ChangeLog-7.php · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-1904 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-1904 · Security Note
• https://github.com/php/php-src/commit/2871c70efaaaa0f102557a17c727fd4d5204dd4b · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1904 · Note
• http://openwall.com/lists/oss-security/2016/01/14/8 · Note
• http://securitytracker.com/id/1034608 · Note
• https://secure.php.net/ChangeLog-7.php#7.0.2 · Note