# CVE-2007-2844: Race condition in n/a

> Remote attackers can exploit race conditions in PHP's crypt function on multi-threaded systems to overwrite memory and gain system access.

- **Severity:** Critical 9.3 (`AV:N/AC:M/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 May 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-rjv2-78g6-p67p

## What is CVE-2007-2844?

CVE-2007-2844 is a critical vulnerability in Php Php, published on 24 May 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems, does not ensure thread safety for libc crypt function calls using protection schemes such as a mutex, which creates race conditions that allow remote attackers to overwrite internal program memory and gain system access.

## Which versions are affected by CVE-2007-2844?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2007-2844?

No fix has been published for CVE-2007-2844 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-2844 being exploited?

There is no known exploitation of CVE-2007-2844 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-2007-2844 and fix it if it is affected.

What it is: CVE-2007-2844 is a critical vulnerability in Php Php, published on 24 May 2007. 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-2007-2844 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-2007-2844/ (Markdown: https://insights.sbomify.com/CVE-2007-2844/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-2844
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-2844
- OSV: https://osv.dev/vulnerability/CVE-2007-2844

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-2844/
Summaries are generated and may contain mistakes; the official description above is the record.