# CVE-2012-1181: Denial of service in n/a

> Remote attackers can cause denial of service via memory consumption by bypassing process limits in the Apache mod_fcgid module.

- **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:** 19 Mar 2012
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2012-1181, DSA-2436-1, GHSA-jp83-4w56-5w6x

## What is CVE-2012-1181?

CVE-2012-1181 is a medium-severity denial of service vulnerability in n/a, published on 19 Mar 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

fcgid_spawn_ctl.c in the mod_fcgid module 2.3.6 for the Apache HTTP Server does not recognize the FcgidMaxProcessesPerClass directive for a virtual host, which makes it easier for remote attackers to cause a denial of service (memory consumption) via a series of HTTP requests that triggers a process count higher than the intended limit.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2012-1181?

It affects 1 product.


Products: Apache Mod Fcgid.

## How do I fix CVE-2012-1181?

Apply the vendor's patch.

## Is CVE-2012-1181 being exploited?

There is no known exploitation of CVE-2012-1181 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2016-1000104](https://insights.sbomify.com/CVE-2016-1000104/): Security feature bypass in n/a (high 8.8)
- [CVE-2013-4365](https://insights.sbomify.com/CVE-2013-4365/): Memory corruption in n/a (high 7.5)
- [CVE-2010-3872](https://insights.sbomify.com/CVE-2010-3872/): Httpd: mod_fcgid: stack-based buffer overflow in fcgid_header_bucket_read() in modules/fcgid/fcgid_bucket.c (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-1181 and fix it if it is affected.

What it is: CVE-2012-1181 is a medium-severity denial of service vulnerability in n/a, published on 19 Mar 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-2012-1181 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-2012-1181/ (Markdown: https://insights.sbomify.com/CVE-2012-1181/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-1181
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-1181
- OSV: https://osv.dev/vulnerability/CVE-2012-1181

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-1181/
Summaries are generated and may contain mistakes; the official description above is the record.