# CVE-2019-5276: Memory corruption in ELLE-AL00B

> A buffer overflow in Huawei smartphones allows attackers on the local network to cause device malfunction by tampering with intercepted packets.

- **Severity:** High 8.8 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 23 Dec 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-fpx2-fc33-q8qp

## What is CVE-2019-5276?

CVE-2019-5276 is a high-severity memory corruption vulnerability in Huawei ELLE-AL00B, published on 23 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Huawei smart phones with earlier versions than ELLE-AL00B 9.1.0.222(C00E220R2P1) have a buffer overflow vulnerability. An attacker may intercept and tamper with the packet in the local area network (LAN) to exploit this vulnerability. Successful exploitation may cause the affected phone abnormal.

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

## Which versions are affected by CVE-2019-5276?

It affects 1 product.


Products: Huawei Elle-Al00b Firmware.

## How do I fix CVE-2019-5276?

No fix has been published for CVE-2019-5276 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-5276 being exploited?

There is no known exploitation of CVE-2019-5276 in the wild and no public exploit code.

## Other vulnerabilities in Huawei ELLE-AL00B

- [CVE-2019-5246](https://insights.sbomify.com/CVE-2019-5246/): Missing authorization in ELLE-AL00B (medium 6.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-5276 and fix it if it is affected.

What it is: CVE-2019-5276 is a high-severity memory corruption vulnerability in Huawei ELLE-AL00B, published on 23 Dec 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-2019-5276 in the wild and no public exploit code.

Affected product: Huawei ELLE-AL00B. 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-2019-5276/ (Markdown: https://insights.sbomify.com/CVE-2019-5276/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-5276
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-5276
- OSV: https://osv.dev/vulnerability/CVE-2019-5276

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-5276/
Summaries are generated and may contain mistakes; the official description above is the record.