# CVE-2016-8764: Memory corruption in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions

> Attackers can read and write arbitrary user-mode memory in the TrustZone driver due to input validation flaws in Huawei P9, P9 Lite, and P8 Lite devices.

- **Severity:** Medium 6.4 (`CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Apr 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-q44f-95xp-jm2w

## What is CVE-2016-8764?

CVE-2016-8764 is a medium-severity memory corruption vulnerability in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions, published on 2 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The TrustZone driver in Huawei P9 phones with software Versions earlier than EVA-AL10C00B352 and P9 Lite with software VNS-L21C185B130 and earlier versions and P8 Lite with software ALE-L02C636B150 and earlier versions has an input validation vulnerability, which allows attackers to read and write user-mode memory data anywhere in the TrustZone driver.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2016-8764?

It affects 3 products.


Products: Huawei P8 Lite Firmware, Huawei P9 Firmware, Huawei P9 Lite Firmware.

## How do I fix CVE-2016-8764?

No fix has been published for CVE-2016-8764 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-8764 being exploited?

There is no known exploitation of CVE-2016-8764 in the wild and no public exploit code.

## Other vulnerabilities in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions

- [CVE-2016-8763](https://insights.sbomify.com/CVE-2016-8763/): Use after free in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions (high 7.8)
- [CVE-2016-8762](https://insights.sbomify.com/CVE-2016-8762/): Denial of service in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-8764 and fix it if it is affected.

What it is: CVE-2016-8764 is a medium-severity memory corruption vulnerability in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions, published on 2 Apr 2017. 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-2016-8764 in the wild and no public exploit code.

Affected product: P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions. 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-2016-8764/ (Markdown: https://insights.sbomify.com/CVE-2016-8764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-8764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-8764
- OSV: https://osv.dev/vulnerability/CVE-2016-8764

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-8764/
Summaries are generated and may contain mistakes; the official description above is the record.