# CVE-2008-2107: Weak cryptography in n/a

> Attackers can predict random numbers in PHP on 32-bit systems due to a zero seed bug, potentially bypassing security mechanisms relying on randomness.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 May 2008
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-j466-8vvm-x7cw

## What is CVE-2008-2107?

CVE-2008-2107 is a high-severity vulnerability in Php Php, published on 7 May 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-189

## Which versions are affected by CVE-2008-2107?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2008-2107?

Upgrade to a fixed version.

## Is CVE-2008-2107 being exploited?

There is no known exploitation of CVE-2008-2107 in the wild and no public exploit code.

## Other vulnerabilities in Php Php

- [CVE-2012-2688](https://insights.sbomify.com/CVE-2012-2688/): Integer overflow in n/a (critical 10.0)
- [CVE-2012-2376](https://insights.sbomify.com/CVE-2012-2376/): Memory corruption in n/a (critical 10.0)
- [CVE-2011-3268](https://insights.sbomify.com/CVE-2011-3268/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-4143](https://insights.sbomify.com/CVE-2009-4143/): Other in n/a (critical 10.0)
- [CVE-2008-5557](https://insights.sbomify.com/CVE-2008-5557/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2008-2107 and fix it if it is affected.

What it is: CVE-2008-2107 is a high-severity vulnerability in Php Php, published on 7 May 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2008-2107 in the wild and no public exploit code.

Affected product: Php Php. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2008-2107/ (Markdown: https://insights.sbomify.com/CVE-2008-2107/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-2107
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-2107
- OSV: https://osv.dev/vulnerability/CVE-2008-2107

---
From sbomify Insights: https://insights.sbomify.com/CVE-2008-2107/
Summaries are generated and may contain mistakes; the official description above is the record.