# CVE-2012-4555: Null dereference in n/a

> Remote attackers can crash the Apache web server child process via a NULL pointer dereference in the token processing system.

- **Severity:** Medium 4.0 (`AV:N/AC:L/Au:S/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:** 4 Jan 2013
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-g97f-4ph3-r6fc

## What is CVE-2012-4555?

CVE-2012-4555 is a medium-severity vulnerability in n/a, published on 4 Jan 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The token processing system (pki-tps) in Red Hat Certificate System (RHCS) before 8.1.3 does not properly handle interruptions of token format operations, which allows remote attackers to cause a denial of service (NULL pointer dereference and Apache httpd web server child process crash) via unspecified vectors.

## Which versions are affected by CVE-2012-4555?

It affects 1 product.


Products: Redhat Certificate System.

## How do I fix CVE-2012-4555?

Upgrade to a fixed version.

## Is CVE-2012-4555 being exploited?

There is no known exploitation of CVE-2012-4555 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2013-1886](https://insights.sbomify.com/CVE-2013-1886/): Other in n/a (high 7.5)
- [CVE-2009-0588](https://insights.sbomify.com/CVE-2009-0588/): Missing authorization in n/a (medium 6.5)
- [CVE-2010-3868](https://insights.sbomify.com/CVE-2010-3868/): Missing authorization in n/a (medium 5.8)
- [CVE-2012-3367](https://insights.sbomify.com/CVE-2012-3367/): Missing authorization in n/a (medium 5.5)
- [CVE-2013-1885](https://insights.sbomify.com/CVE-2013-1885/): Cross-site scripting in n/a (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-4555 and fix it if it is affected.

What it is: CVE-2012-4555 is a medium-severity vulnerability in n/a, published on 4 Jan 2013. 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-2012-4555 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-2012-4555/ (Markdown: https://insights.sbomify.com/CVE-2012-4555/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-4555
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-4555
- OSV: https://osv.dev/vulnerability/CVE-2012-4555

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-4555/
Summaries are generated and may contain mistakes; the official description above is the record.