# CVE-2017-17306: Information disclosure in VNS-L21

> A malicious application can exploit an array out-of-bounds read vulnerability to disclose memory contents and potentially cause device instability.

- **Severity:** Medium 5.5 (`CVSS:3.0/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:** 20 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-qq36-jh5w-95qg

## What is CVE-2017-17306?

CVE-2017-17306 is a medium-severity vulnerability in Huawei Technologies Co., Ltd. VNS-L21, published on 20 Mar 2018. 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 with software of VNS-L21AUTC555B141, VNS-L21C10B160, VNS-L21C66B160, VNS-L21C703B140 have an array out-of-bounds read vulnerability. Due to the lack verification of array, an attacker tricks a user into installing a malicious application, and the application can exploit the vulnerability and make attacker to read out of bounds of array and possibly cause the device abnormal.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2017-17306?

It affects 1 product.


Products: Huawei Vns-L21 Firmware.

## How do I fix CVE-2017-17306?

No fix has been published for CVE-2017-17306 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-17306 being exploited?

There is no known exploitation of CVE-2017-17306 in the wild and no public exploit code.

## Other vulnerabilities in Huawei Technologies Co., Ltd. VNS-L21

- [CVE-2017-17307](https://insights.sbomify.com/CVE-2017-17307/): Information disclosure in VNS-L21 (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-17306 and fix it if it is affected.

What it is: CVE-2017-17306 is a medium-severity vulnerability in Huawei Technologies Co., Ltd. VNS-L21, published on 20 Mar 2018. 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-2017-17306 in the wild and no public exploit code.

Affected product: Huawei Technologies Co., Ltd. VNS-L21. 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-2017-17306/ (Markdown: https://insights.sbomify.com/CVE-2017-17306/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-17306
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-17306
- OSV: https://osv.dev/vulnerability/CVE-2017-17306

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-17306/
Summaries are generated and may contain mistakes; the official description above is the record.