# CVE-2007-2831: Integer overflow in n/a

> Local attackers can trigger a system crash, leak kernel memory, or execute arbitrary code via a negative array index in MadWifi wireless drivers.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 May 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-9j75-9wp3-854g

## What is CVE-2007-2831?

CVE-2007-2831 is a critical vulnerability in n/a, published on 24 May 2007. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Array index error in the (1) ieee80211_ioctl_getwmmparams and (2) ieee80211_ioctl_setwmmparams functions in net80211/ieee80211_wireless.c in MadWifi before 0.9.3.1 allows local users to cause a denial of service (system crash), possibly obtain kernel memory contents, and possibly execute arbitrary code via a large negative array index value.

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

## Which versions are affected by CVE-2007-2831?

It affects 1 product.


Products: Madwifi Madwifi.

## How do I fix CVE-2007-2831?

No fix has been published for CVE-2007-2831 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-2831 being exploited?

There is no known exploitation of CVE-2007-2831 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2006-7177](https://insights.sbomify.com/CVE-2006-7177/): Denial of service in n/a (high 7.8)
- [CVE-2006-7178](https://insights.sbomify.com/CVE-2006-7178/): Denial of service in n/a (high 7.8)
- [CVE-2006-7179](https://insights.sbomify.com/CVE-2006-7179/): Denial of service in n/a (high 7.8)
- [CVE-2006-6332](https://insights.sbomify.com/CVE-2006-6332/): Memory corruption in n/a (high 7.5)
- [CVE-2005-4835](https://insights.sbomify.com/CVE-2005-4835/): Denial of service in n/a (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-2831 and fix it if it is affected.

What it is: CVE-2007-2831 is a critical vulnerability in n/a, published on 24 May 2007. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-2831 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-2007-2831/ (Markdown: https://insights.sbomify.com/CVE-2007-2831/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-2831
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-2831
- OSV: https://osv.dev/vulnerability/CVE-2007-2831

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-2831/
Summaries are generated and may contain mistakes; the official description above is the record.