# CVE-2008-7068: Denial of service in n/a

> Attackers with database write access can cause file truncation and denial of service in PHP via NULL byte injection in dba_replace.

- **Severity:** Medium 6.4 (`AV:N/AC:L/Au:N/C:N/I:P/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:** 25 Aug 2009
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-r7m8-6r5m-4fqh

## What is CVE-2008-7068?

CVE-2008-7068 is a medium-severity denial of service vulnerability in Php Php, published on 25 Aug 2009. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte.  NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2008-7068?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2008-7068?

Upgrade to a fixed version.

## Is CVE-2008-7068 being exploited?

There is no known exploitation of CVE-2008-7068 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-2008-7068 and fix it if it is affected.

What it is: CVE-2008-7068 is a medium-severity denial of service vulnerability in Php Php, published on 25 Aug 2009. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2008-7068 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-2008-7068/ (Markdown: https://insights.sbomify.com/CVE-2008-7068/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-7068
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-7068
- OSV: https://osv.dev/vulnerability/CVE-2008-7068

---
From sbomify Insights: https://insights.sbomify.com/CVE-2008-7068/
Summaries are generated and may contain mistakes; the official description above is the record.