What is CVE-2017-15951?

CVE-2017-15951 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2017-15951 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-15951?

CVE-2017-15951 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-15951?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-15951 patch availability.

Is CVE-2017-15951 actively exploited?

CVE-2017-15951 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2017-15951

High

The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus finding a key in the "negative" state to avoid a race condition, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls.

Package Linux Kernel

Published 2017-10-28

Last modified 2026-05-13

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-20

CVE-2017-15951 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

4 total

Kernel.org
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.10

Release Notes Vendor Advisory
Kernel Git
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=363b02dab09b3226f3bd1420dad9c72b79a42a76

Issue Tracking Patch Third Party Advisory
GitHub
https://github.com/torvalds/linux/commit/363b02dab09b3226f3bd1420dad9c72b79a42a76

Issue Tracking Patch Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/101621

Third Party Advisory VDB Entry

Details

CVE ID CVE-2017-15951

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2017-10-28

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-15951?

CVE-2017-15951 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2017-15951 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-15951?

CVE-2017-15951 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-15951?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-15951 patch availability.
Is CVE-2017-15951 actively exploited?

No. CVE-2017-15951 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.