# CVE-2022-46884: Use after free in Firefox

> A use-after-free in Firefox SVG handling could allow attackers to execute arbitrary code or cause a crash via malicious content.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 24 Aug 2023
- **Updated:** 2 Oct 2024
- **Also known as:** GHSA-w3h2-4jrj-6mcc, UBUNTU-CVE-2022-46884

## What is CVE-2022-46884?

CVE-2022-46884 is a high-severity use after free vulnerability in Mozilla Firefox, published on 24 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed at an inopportune time.  This could have lead to memory corruption or a potentially exploitable crash.
*Note*: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in the original release of Firefox 106. This vulnerability affects Firefox < 106.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2022-46884?

It affects 1 product.


Products: Mozilla Firefox.

## How do I fix CVE-2022-46884?

No fix has been published for CVE-2022-46884 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-46884 being exploited?

There is no known exploitation of CVE-2022-46884 in the wild and no public exploit code.

## Other vulnerabilities in Mozilla Firefox

- [CVE-2019-11708](https://insights.sbomify.com/CVE-2019-11708/): Mozilla Firefox and Thunderbird Sandbox Escape (critical 10.0, exploited in the wild)
- [CVE-2010-3765](https://insights.sbomify.com/CVE-2010-3765/): Mozilla Multiple Products Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2022-26486](https://insights.sbomify.com/CVE-2022-26486/): Mozilla Firefox Use-After-Free (critical 9.6, exploited in the wild)
- [CVE-2022-26485](https://insights.sbomify.com/CVE-2022-26485/): Mozilla Firefox Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2019-11707](https://insights.sbomify.com/CVE-2019-11707/): Mozilla Firefox and Thunderbird Type Confusion (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-46884 and fix it if it is affected.

What it is: CVE-2022-46884 is a high-severity use after free vulnerability in Mozilla Firefox, published on 24 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-46884 in the wild and no public exploit code.

Affected product: Mozilla Firefox. 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-2022-46884/ (Markdown: https://insights.sbomify.com/CVE-2022-46884/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-46884
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-46884
- OSV: https://osv.dev/vulnerability/CVE-2022-46884

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-46884/
Summaries are generated and may contain mistakes; the official description above is the record.