# CVE-2017-3084: Use after free in Adobe Flash Player 25.0.0.171 and earlier.

> Attackers can execute arbitrary code via a use-after-free flaw in Adobe Flash Player's advertising metadata handling.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 20 Jun 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-9c6q-6mm3-j66v, UBUNTU-CVE-2017-3084

## What is CVE-2017-3084?

CVE-2017-3084 is a critical use after free vulnerability in Adobe Flash Player, published on 20 Jun 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Adobe Flash Player versions 25.0.0.171 and earlier have an exploitable use after free vulnerability in the advertising metadata functionality. Successful exploitation could lead to arbitrary code execution.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2017-3084?

It affects 1 product.


Products: Adobe Flash Player.

## How do I fix CVE-2017-3084?

Upgrade to a fixed version.

## Is CVE-2017-3084 being exploited?

There is no known exploitation of CVE-2017-3084 in the wild and no public exploit code.

## Other vulnerabilities in Adobe Flash Player

- [CVE-2017-11292](https://insights.sbomify.com/CVE-2017-11292/): Adobe Flash Player Type Confusion (high 8.8, exploited in the wild)
- [CVE-2016-7892](https://insights.sbomify.com/CVE-2016-7892/): Adobe Flash Player Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2016-7855](https://insights.sbomify.com/CVE-2016-7855/): Adobe Flash Player Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2014-0497](https://insights.sbomify.com/CVE-2014-0497/): Adobe Flash Player Integer Underflow Vulnerablity (high 8.8, exploited in the wild)
- [CVE-2013-0643](https://insights.sbomify.com/CVE-2013-0643/): Adobe Flash Player Incorrect Default Permissions (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-3084 and fix it if it is affected.

What it is: CVE-2017-3084 is a critical use after free vulnerability in Adobe Flash Player, published on 20 Jun 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-3084 in the wild and no public exploit code.

Affected product: Adobe Flash Player. 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-2017-3084/ (Markdown: https://insights.sbomify.com/CVE-2017-3084/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-3084
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-3084
- OSV: https://osv.dev/vulnerability/CVE-2017-3084

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-3084/
Summaries are generated and may contain mistakes; the official description above is the record.