# CVE-2021-22305: Memory corruption in HUAWEI Mate 30

> Attackers can cause a buffer overflow and service disruption in Huawei Mate 30 devices by sending malicious input to a specific module.

- **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`)
- **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:** 6 Feb 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-34p8-x6j6-mmg5

## What is CVE-2021-22305?

CVE-2021-22305 is a low-severity memory corruption vulnerability in HUAWEI Mate 30, published on 6 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

There is a buffer overflow vulnerability in Mate 30 10.1.0.126(C00E125R5P3). A module does not verify the some input when dealing with messages. Attackers can exploit this vulnerability by sending malicious input through specific module. This could cause buffer overflow, compromising normal service.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2021-22305?

It affects 1 product.


Products: Huawei Mate 30 Firmware.

## How do I fix CVE-2021-22305?

No fix has been published for CVE-2021-22305 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22305 being exploited?

There is no known exploitation of CVE-2021-22305 in the wild and no public exploit code.

## Other vulnerabilities in HUAWEI Mate 30

- [CVE-2020-9263](https://insights.sbomify.com/CVE-2020-9263/): Use after free in HUAWEI Mate 30;HUAWEI P30 (high 7.8)
- [CVE-2020-9261](https://insights.sbomify.com/CVE-2020-9261/): Memory corruption in HUAWEI Mate 30 (high 7.8)
- [CVE-2020-9262](https://insights.sbomify.com/CVE-2020-9262/): Use after free in HUAWEI Mate 30 (high 7.8)
- [CVE-2021-22301](https://insights.sbomify.com/CVE-2021-22301/): Memory corruption in HUAWEI Mate 30 (medium 6.7)
- [CVE-2020-9125](https://insights.sbomify.com/CVE-2020-9125/): Memory corruption in HUAWEI Mate 30 (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22305 and fix it if it is affected.

What it is: CVE-2021-22305 is a low-severity memory corruption vulnerability in HUAWEI Mate 30, published on 6 Feb 2021. 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-2021-22305 in the wild and no public exploit code.

Affected product: HUAWEI Mate 30. 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-2021-22305/ (Markdown: https://insights.sbomify.com/CVE-2021-22305/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22305
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22305
- OSV: https://osv.dev/vulnerability/CVE-2021-22305

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22305/
Summaries are generated and may contain mistakes; the official description above is the record.