CVE Database›CVE-2016-9313

CVE-2016-9313

kernel: security/keys/big_key.c mishandles unsuccessful crypto registration

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.0

Review impact separately from score.

Published · July 22, 2016

Updated · November 21, 2025

Description

The implementation of big key management in 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.

Statement

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5,6 and 7 as the code with the flaw is not present in the products listed.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5.5
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 · 4.7
AV:L/AC:M/Au:N/C:N/I:N/A:C

CWE-476 · NULL Pointer Dereference