# CVE-2012-3421: Denial of service in n/a

> Remote attackers can cause a denial of service in Performance Co-Pilot by sending fragmented PDU data, affecting the pmcd daemon.

- **Severity:** Medium 5.0 (`AV:N/AC:L/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:** 27 Aug 2012
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2012-3421, GHSA-5m4g-m6fj-7r63

## What is CVE-2012-3421?

CVE-2012-3421 is a medium-severity denial of service vulnerability in n/a, published on 27 Aug 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The pduread function in pdu.c in libpcp in Performance Co-Pilot (PCP) before 3.6.5 does not properly time out connections, which allows remote attackers to cause a denial of service (pmcd hang) by sending individual bytes of a PDU separately, related to an "event-driven programming flaw."

## Which versions are affected by CVE-2012-3421?

It affects 1 product.


Products: Sgi Performance Co-Pilot.

## How do I fix CVE-2012-3421?

Upgrade to a fixed version.

## Is CVE-2012-3421 being exploited?

There is no known exploitation of CVE-2012-3421 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2001-0823](https://insights.sbomify.com/CVE-2001-0823/): Path traversal in n/a (high 7.2)
- [CVE-2012-3418](https://insights.sbomify.com/CVE-2012-3418/): Integer overflow in n/a (medium 5.0)
- [CVE-2012-3419](https://insights.sbomify.com/CVE-2012-3419/): Information disclosure in n/a (medium 5.0)
- [CVE-2012-3420](https://insights.sbomify.com/CVE-2012-3420/): Denial of service in n/a (medium 5.0)
- [CVE-2012-5530](https://insights.sbomify.com/CVE-2012-5530/): Path traversal in n/a (low 2.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-3421 and fix it if it is affected.

What it is: CVE-2012-3421 is a medium-severity denial of service vulnerability in n/a, published on 27 Aug 2012. 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-2012-3421 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-2012-3421/ (Markdown: https://insights.sbomify.com/CVE-2012-3421/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-3421
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-3421
- OSV: https://osv.dev/vulnerability/CVE-2012-3421

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-3421/
Summaries are generated and may contain mistakes; the official description above is the record.