# CVE-2016-8784: Denial of service in CloudEngine 12800

> Unauthenticated attackers can cause memory leaks and potential denial of service on Huawei CloudEngine switches by sending malformed LDP packets.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Mar 2018
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-gwgg-4mwq-8v75

## What is CVE-2016-8784?

CVE-2016-8784 is a medium-severity denial of service vulnerability in Huawei Technologies Co., Ltd. CloudEngine 12800, published on 9 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Huawei CloudEngine 12800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00 have a memory leak vulnerability. An unauthenticated attacker may send specific Label Distribution Protocol (LDP) packets to the devices. When the values of some parameters in the packet are abnormal, the LDP processing module does not release the memory to handle the packet, resulting in memory leak.

Weakness: CWE-399

## Which versions are affected by CVE-2016-8784?

It affects 1 product.


Products: Huawei Cloudengine 12800 Firmware.

## How do I fix CVE-2016-8784?

No fix has been published for CVE-2016-8784 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-8784 being exploited?

There is no known exploitation of CVE-2016-8784 in the wild and no public exploit code.

## Other vulnerabilities in Huawei Technologies Co., Ltd. CloudEngine 12800

- [CVE-2016-6178](https://insights.sbomify.com/CVE-2016-6178/): Other in n/a (critical 9.8)
- [CVE-2020-9207](https://insights.sbomify.com/CVE-2020-9207/): Auth bypass in CloudEngine 12800 (high 7.8)
- [CVE-2021-40008](https://insights.sbomify.com/CVE-2021-40008/): Denial of service in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800 (high 7.5)
- [CVE-2021-22328](https://insights.sbomify.com/CVE-2021-22328/): Denial of service in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800 (high 7.5)
- [CVE-2021-22332](https://insights.sbomify.com/CVE-2021-22332/): Use after free in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-8784 and fix it if it is affected.

What it is: CVE-2016-8784 is a medium-severity denial of service vulnerability in Huawei Technologies Co., Ltd. CloudEngine 12800, published on 9 Mar 2018. 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-2016-8784 in the wild and no public exploit code.

Affected product: Huawei Technologies Co., Ltd. CloudEngine 12800. 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-2016-8784/ (Markdown: https://insights.sbomify.com/CVE-2016-8784/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-8784
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-8784
- OSV: https://osv.dev/vulnerability/CVE-2016-8784

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-8784/
Summaries are generated and may contain mistakes; the official description above is the record.