# CVE-2018-19978: Memory corruption in n/a

> Remote authenticated attackers can achieve root code execution via buffer overflow in the DHCP/PPPOE configuration interface of Auerswald IP phones.

- **Severity:** High 8.0 (`CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 29 May 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-34vw-wmm7-63j4

## What is CVE-2018-19978?

CVE-2018-19978 is a high-severity memory corruption vulnerability in n/a, published on 29 May 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A buffer overflow vulnerability in the DHCP and PPPOE configuration interface of the Auerswald COMfort 1200 IP phone 3.4.4.1-10589 allows a remote attacker (authenticated as simple user in the same network as the device) to trigger remote code execution via a POST request (ManufacturerName parameter) to the web server on the device. The web server is running with root privileges and the injected code will also run with root privileges.

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

## Which versions are affected by CVE-2018-19978?

It affects 1 product.


Products: Auerswald Comfortel 1200 Ip Firmware.

## How do I fix CVE-2018-19978?

No fix has been published for CVE-2018-19978 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-19978 being exploited?

There is no known exploitation of CVE-2018-19978 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-19977](https://insights.sbomify.com/CVE-2018-19977/): Command injection in n/a (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-19978 and fix it if it is affected.

What it is: CVE-2018-19978 is a high-severity memory corruption vulnerability in n/a, published on 29 May 2019. 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-2018-19978 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-2018-19978/ (Markdown: https://insights.sbomify.com/CVE-2018-19978/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-19978
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-19978
- OSV: https://osv.dev/vulnerability/CVE-2018-19978

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-19978/
Summaries are generated and may contain mistakes; the official description above is the record.