# CVE-2015-7946: MTP service exposed during emergency dialer

> An attacker can expose the MTP service by opening the emergency dialer, potentially allowing unauthorized data access on Ubuntu phones.

- **Severity:** High 7.3 (`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N`)
- **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:** 7 May 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-8x99-rqcq-6fvg

## What is CVE-2015-7946?

CVE-2015-7946 is a high-severity vulnerability in Canonical unity8 (Ubuntu), published on 7 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Information Exposure vulnerability in Unity8 as used on the Ubuntu phone and possibly also in Unity8 shipped elsewhere. This allows an attacker to enable the MTP service by opening the emergency dialer. Fixed in 8.11+16.04.20160111.1-0ubuntu1 and 8.11+15.04.20160122-0ubuntu1.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2015-7946?

It affects 1 product.


Products: Ubports Unity8.

## How do I fix CVE-2015-7946?

No fix has been published for CVE-2015-7946 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-7946 being exploited?

There is no known exploitation of CVE-2015-7946 in the wild and no public exploit code.

## Other vulnerabilities in Canonical unity8 (Ubuntu)

- [CVE-2016-1573](https://insights.sbomify.com/CVE-2016-1573/): Using a specially crafted fallback art property, scopes can execute arbitrary QML code in context of unity8-dash (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-7946 and fix it if it is affected.

What it is: CVE-2015-7946 is a high-severity vulnerability in Canonical unity8 (Ubuntu), published on 7 May 2020. 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-2015-7946 in the wild and no public exploit code.

Affected product: Canonical unity8 (Ubuntu). 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-2015-7946/ (Markdown: https://insights.sbomify.com/CVE-2015-7946/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-7946
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-7946
- OSV: https://osv.dev/vulnerability/CVE-2015-7946

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-7946/
Summaries are generated and may contain mistakes; the official description above is the record.