Upstream information
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.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having critical severity.
| CVSS detail | National Vulnerability Database | 
|---|---|
| Base Score | 7.5 | 
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P | 
| Access Vector | Network | 
| Access Complexity | Low | 
| Authentication | None | 
| Confidentiality Impact | Partial | 
| Integrity Impact | Partial | 
| Availability Impact | Partial | 
| CVSS detail | National Vulnerability Database | 
|---|---|
| Base Score | 9.8 | 
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | 
| Attack Vector | Network | 
| Attack Complexity | Low | 
| Privileges Required | None | 
| User Interaction | None | 
| Scope | Unchanged | 
| Confidentiality Impact | High | 
| Integrity Impact | High | 
| Availability Impact | High | 
| CVSSv3 Version | 3.1 | 
SUSE Timeline for this CVE
CVE page created: Fri Jun 28 04:04:29 2013CVE page last modified: Mon Oct 6 18:15:18 2025