CVE-2014-4721: Debian Linux

Low severity, CVSS 2.6. EPSS: 5.9% chance of exploitation in the next 30 days.

The phpinfo implementation in ext/standard/info.c in PHP before 5.4.30 and 5.5.x before 5.5.14 does not ensure use of the string data type for the PHP_AUTH_PW, PHP_AUTH_TYPE, PHP_AUTH_USER, and PHP_SELF variables, which might allow context-dependent attackers to obtain sensitive information from process memory by using the integer data type with crafted values, related to a "type confusion" vulnerability, as demonstrated by reading a private SSL key in an Apache HTTP Server web-hosting environment with mod_ssl and a PHP 5.3.x mod_php.

Affected products

• Debian Debian Linux: version 7.0 only; version 8.0 only
• PHP PHP: from 5.3.0, before 5.3.29 (fixed in 5.3.29); from 5.4.0, before 5.4.30 (fixed in 5.4.30); from 5.5.0, before 5.5.14 (fixed in 5.5.14)

Published 2014-07-06. Last modified 2026-06-17.