# CVE-2014-1564: Information disclosure in n/a

> Remote attackers can read sensitive process memory via crafted GIF images in Firefox or Thunderbird, requiring user interaction to view the content.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:P/I:N/A:N`)
- **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:** Yes
- **Published:** 3 Sep 2014
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-cmpx-j54c-xj6j, UBUNTU-CVE-2014-1564

## What is CVE-2014-1564?

CVE-2014-1564 is a medium-severity vulnerability in Mozilla Firefox, published on 3 Sep 2014. 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

Mozilla Firefox before 32.0, Firefox ESR 31.x before 31.1, and Thunderbird 31.x before 31.1 do not properly initialize memory for GIF rendering, which allows remote attackers to obtain sensitive information from process memory via crafted web script that interacts with a CANVAS element associated with a malformed GIF image.

Weakness: CWE-824 (Access of Uninitialized Pointer)

## Which versions are affected by CVE-2014-1564?

It affects 4 products.


Products: Mozilla Firefox, Mozilla Thunderbird, Opensuse Evergreen, Opensuse Opensuse.

## How do I fix CVE-2014-1564?

Upgrade to a fixed version.

## Is CVE-2014-1564 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2014-1564 exists.

Public exploit code:

- Mozilla Firefox 9.0.1 / Thunderbird 3.1.20 - Information Disclosure (exploitdb)

## 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-2014-1564 and fix it if it is affected.

What it is: CVE-2014-1564 is a medium-severity vulnerability in Mozilla Firefox, published on 3 Sep 2014. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2014-1564 exists.

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-2014-1564/ (Markdown: https://insights.sbomify.com/CVE-2014-1564/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-1564
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-1564
- OSV: https://osv.dev/vulnerability/CVE-2014-1564

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-1564/
Summaries are generated and may contain mistakes; the official description above is the record.