Description
The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 64-bit systems, performs a multiplication that generates a portion of zero bits during conversion due to insufficient precision, which produces 24 bits of entropy and simplifies brute force attacks against protection mechanisms that use the rand and mt_rand functions.
References (29)
... and 9 more
Scores
CVSS v3
9.8
EPSS
0.0561
EPSS Percentile
90.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-331
Status
published
Products (8)
canonical/ubuntu_linux
6.06
canonical/ubuntu_linux
7.04
canonical/ubuntu_linux
7.10
canonical/ubuntu_linux
8.04
debian/debian_linux
4.0
fedoraproject/fedora
8
fedoraproject/fedora
9
php/php
4.0.0 - 4.4.8
Published
May 07, 2008
Tracked Since
Feb 18, 2026