# CVE-2021-22400: Denial of service in OxfordS-AN00A

> A malicious app can crash the system by modifying parameters due to insufficient input validation in Huawei smartphones.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Aug 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-ppx9-6hx6-3rfr

## What is CVE-2021-22400?

CVE-2021-22400 is a medium-severity denial of service vulnerability in OxfordS-AN00A, published on 3 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Some Huawei Smartphones has an insufficient input validation vulnerability due to the lack of parameter validation. An attacker may trick a user into installing a malicious APP. The app can modify specific parameters, causing the system to crash. Affected product include:OxfordS-AN00A 10.0.1.10(C00E10R1P1),10.0.1.105(C00E103R3P3),10.0.1.115(C00E110R3P3),10.0.1.123(C00E121R3P3),10.0.1.135(C00E130R3P3),10.0.1.135(C00E130R4P1),10.0.1.152(C00E140R4P1),10.0.1.160(C00E160R4P1),10.0.1.167(C00E166R4P1),10.0.1.173(C00E172R5P1),10.0.1.178(C00E175R5P1) and 10.1.0.202(C00E79R5P1).

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2021-22400?

It affects 1 product.


Products: Huawei Oxfords-An00a Firmware.

## How do I fix CVE-2021-22400?

No fix has been published for CVE-2021-22400 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22400 being exploited?

There is no known exploitation of CVE-2021-22400 in the wild and no public exploit code.

## Other vulnerabilities in OxfordS-AN00A

- [CVE-2020-1878](https://insights.sbomify.com/CVE-2020-1878/): Auth bypass in OxfordS-AN00A (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22400 and fix it if it is affected.

What it is: CVE-2021-22400 is a medium-severity denial of service vulnerability in OxfordS-AN00A, published on 3 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-22400 in the wild and no public exploit code.

Affected product: OxfordS-AN00A. 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-2021-22400/ (Markdown: https://insights.sbomify.com/CVE-2021-22400/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22400
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22400
- OSV: https://osv.dev/vulnerability/CVE-2021-22400

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22400/
Summaries are generated and may contain mistakes; the official description above is the record.