CVE-2016-9313

Name: CVE-2016-9313
Creator: NVD / NIST
Published: 2016-11-28T03:59:15.033+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 2.11%

Last modified Jun 17, 2026

CVE-2016-9313 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. security/keys/big_key.c in the Linux kernel before 4.8.7 mishandles unsuccessful crypto registration in conjunction with successful key-type registration, which allows local users to cause a denial of service (NULL pointer dereference and panic) or possibly have unspecified other impact via a crafted application that uses the big_key data type.. EPSS estimates a 2.11% chance of exploitation in the next 30 days.

Description

security/keys/big_key.c in the Linux kernel before 4.8.7 mishandles unsuccessful crypto registration in conjunction with successful key-type registration, which allows local users to cause a denial of service (NULL pointer dereference and panic) or possibly have unspecified other impact via a crafted application that uses the big_key data type.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

2.11%

79.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 4.7, < 4.8.7

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fbIssue Tracking, Patch, Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7Release Notes
http://www.openwall.com/lists/oss-security/2016/07/22/1Exploit, Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94546Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fbIssue Tracking, Patch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fbIssue Tracking, Patch, Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7Release Notes
http://www.openwall.com/lists/oss-security/2016/07/22/1Exploit, Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94546Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fbIssue Tracking, Patch, Third Party Advisory

Timeline

Published: Nov 28, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9313?

How severe is CVE-2016-9313?

CVE-2016-9313 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 2.11% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9313?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9313?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST