CVE-2017-17807

Low

The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c.

Package Linux Kernel
Published 2017-12-20
Last modified 2026-05-13
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

3.3

out of 10
Low
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness type

CWE-862

CVE-2017-17807 is classified as CWE-862

See CWE-862 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2017-17807 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2017-17807?

    CVE-2017-17807 is a Low severity Linux kernel vulnerability with a CVSS score of 3.3 out of 10 . CVE-2017-17807 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2017-17807?

    CVE-2017-17807 has a CVSS score of 3.3 out of 10, rated Low severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N .

  • Is there a patch available for CVE-2017-17807?

    No patch is currently available for CVE-2017-17807. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2017-17807 actively exploited?

    No — CVE-2017-17807 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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