# CVE-2006-7230: Denial of service in n/a

> Crafted regular expressions can cause a crash in the PCRE library, leading to denial of service for applications using it.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:N/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:** 15 Nov 2007
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2006-7230, GHSA-64q5-vm73-jhjp

## What is CVE-2006-7230?

CVE-2006-7230 is a medium-severity denial of service vulnerability in n/a, published on 15 Nov 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Perl-Compatible Regular Expression (PCRE) library before 7.0 does not properly calculate the amount of memory needed for a compiled regular expression pattern when the (1) -x or (2) -i UTF-8 options change within the pattern, which allows context-dependent attackers to cause a denial of service (PCRE or glibc crash) via crafted regular expressions.

Weakness: CWE-189

## Which versions are affected by CVE-2006-7230?

It affects 1 product.


Products: Pcre Pcre.

## How do I fix CVE-2006-7230?

Upgrade to a fixed version.

## Is CVE-2006-7230 being exploited?

There is no known exploitation of CVE-2006-7230 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2015-3210](https://insights.sbomify.com/CVE-2015-3210/): Memory corruption in n/a (critical 9.8)
- [CVE-2016-3191](https://insights.sbomify.com/CVE-2016-3191/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-7245](https://insights.sbomify.com/CVE-2017-7245/): Memory corruption in n/a (high 7.8)
- [CVE-2017-7246](https://insights.sbomify.com/CVE-2017-7246/): Memory corruption in n/a (high 7.8)
- [CVE-2017-11164](https://insights.sbomify.com/CVE-2017-11164/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-7230 and fix it if it is affected.

What it is: CVE-2006-7230 is a medium-severity denial of service vulnerability in n/a, published on 15 Nov 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-2006-7230 in the wild and no public exploit code.

Affected product: n/a. 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-2006-7230/ (Markdown: https://insights.sbomify.com/CVE-2006-7230/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-7230
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-7230
- OSV: https://osv.dev/vulnerability/CVE-2006-7230

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-7230/
Summaries are generated and may contain mistakes; the official description above is the record.