# CVE-2015-4146: Denial of service in n/a

> Remote attackers can crash hostapd or wpa_supplicant by sending crafted EAP-pwd messages due to improper flag handling.

- **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:** 15 Jun 2015
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2015-4146, GHSA-f2m4-x3g9-fqq7, UBUNTU-CVE-2015-4146

## What is CVE-2015-4146?

CVE-2015-4146 is a medium-severity denial of service vulnerability in Opensuse Opensuse, published on 15 Jun 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The EAP-pwd peer implementation in hostapd and wpa_supplicant 1.0 through 2.4 does not clear the L (Length) and M (More) flags before determining if a response should be fragmented, which allows remote attackers to cause a denial of service (crash) via a crafted message.

## Which versions are affected by CVE-2015-4146?

It affects 3 products.


Products: Opensuse Opensuse, W1.fi Hostapd, W1.fi Wpa Supplicant.

## How do I fix CVE-2015-4146?

Upgrade to a fixed version.

## Is CVE-2015-4146 being exploited?

There is no known exploitation of CVE-2015-4146 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Opensuse

- [CVE-2015-5957](https://insights.sbomify.com/CVE-2015-5957/): Memory corruption in n/a (critical 10.0)
- [CVE-2015-0491](https://insights.sbomify.com/CVE-2015-0491/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-2388](https://insights.sbomify.com/CVE-2008-2388/): Integer overflow in n/a (critical 10.0)
- [CVE-2010-1866](https://insights.sbomify.com/CVE-2010-1866/): Integer overflow in n/a (critical 9.8)
- [CVE-2015-0492](https://insights.sbomify.com/CVE-2015-0492/): Other in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-4146 and fix it if it is affected.

What it is: CVE-2015-4146 is a medium-severity denial of service vulnerability in Opensuse Opensuse, published on 15 Jun 2015. 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-2015-4146 in the wild and no public exploit code.

Affected product: Opensuse Opensuse. 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-2015-4146/ (Markdown: https://insights.sbomify.com/CVE-2015-4146/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-4146
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-4146
- OSV: https://osv.dev/vulnerability/CVE-2015-4146

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-4146/
Summaries are generated and may contain mistakes; the official description above is the record.