# CVE-2007-1717: Denial of service in n/a

> Attackers can truncate email messages by injecting null bytes, preventing delivery of critical trailing information in PHP applications.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Mar 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-jq2w-7pmj-9wpw

## What is CVE-2007-1717?

CVE-2007-1717 is a medium-severity denial of service vulnerability in Php Php, published on 28 Mar 2007. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The mail function in PHP 4.0.0 through 4.4.6 and 5.0.0 through 5.2.1 truncates e-mail messages at the first ASCIIZ ('\0') byte, which might allow context-dependent attackers to prevent intended information from being delivered in e-mail messages.  NOTE: this issue might be security-relevant in cases when the trailing contents of e-mail messages are important, such as logging information or if the message is expected to be well-formed.

## Which versions are affected by CVE-2007-1717?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2007-1717?

No fix has been published for CVE-2007-1717 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-1717 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-1717 exists.

Public exploit code:

- PHP 5.2.1 - Folded Mail Headers Email Header Injection (exploitdb)

## 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-2007-1717 and fix it if it is affected.

What it is: CVE-2007-1717 is a medium-severity denial of service vulnerability in Php Php, published on 28 Mar 2007. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-1717 exists.

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-2007-1717/ (Markdown: https://insights.sbomify.com/CVE-2007-1717/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-1717
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-1717
- OSV: https://osv.dev/vulnerability/CVE-2007-1717

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-1717/
Summaries are generated and may contain mistakes; the official description above is the record.