Input validation error in PHP - CVE-2008-2107

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Main Vulnerability Database Vulnerabilities #VU110344

Input validation error in PHP - CVE-2008-2107

Published: October 11, 2018 / Updated: June 8, 2025


Vulnerability identifier: #VU110344
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2008-2107
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: PHP Group
Affected software:
PHP

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 32-bit systems, performs a multiplication using values that can produce a zero seed in rare circumstances, which allows context-dependent attackers to predict subsequent values of the rand and mt_rand functions and possibly bypass protection mechanisms that rely on an unknown initial seed.


How to mitigate CVE-2008-2107

Install update from vendor's website.

Sources