CVE-2017-6951

MEDIUM

Linux kernel <3.14.79 - DoS

Title source: llm

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.

References (7)

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/96943

[Mailing List, Third Party Advisory] http://www.spinics.net/lists/keyrings/msg01845.html

[Mailing List, Third Party Advisory] http://www.spinics.net/lists/keyrings/msg01846.html

[Mailing List, Third Party Advisory] http://www.spinics.net/lists/keyrings/msg01849.html

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2017:1842

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2017:2077

[Vendor Advisory] https://access.redhat.com/errata/RHSA-2017:2669

Scores

CVSS v3 5.5

EPSS 0.0009

EPSS Percentile 25.7%

Attack Vector LOCAL

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

Classification

CWE

CWE-476

Status published

Affected Products (2)

n/a/n/a

linux/linux_kernel < 3.14.79

Timeline

Published Mar 16, 2017

Tracked Since Feb 18, 2026