# CVE-2007-4887: Denial of service in n/a

> Attackers can crash PHP applications by passing a long string to the dl function, causing a denial of service.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 14 Sep 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-fr5p-wxp2-3q76

## What is CVE-2007-4887?

CVE-2007-4887 is a medium-severity denial of service vulnerability in Php Php, published on 14 Sep 2007. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The dl function in PHP 5.2.4 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a long string in the library parameter.  NOTE: there are limited usage scenarios under which this would be a vulnerability.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2007-4887?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2007-4887?

Upgrade to a fixed version.

## Is CVE-2007-4887 being exploited?

There is no known exploitation of CVE-2007-4887 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-2007-4887 and fix it if it is affected.

What it is: CVE-2007-4887 is a medium-severity denial of service vulnerability in Php Php, published on 14 Sep 2007. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-4887 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-2007-4887/ (Markdown: https://insights.sbomify.com/CVE-2007-4887/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-4887
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-4887
- OSV: https://osv.dev/vulnerability/CVE-2007-4887

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-4887/
Summaries are generated and may contain mistakes; the official description above is the record.