CVE-2017-6951

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-03-16 · updated 2026-06-17
Weakness: CWE-476

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.

Affected products

Linux kernel: through 3.14.79

References

http://www.securityfocus.com/bid/96943
http://www.spinics.net/lists/keyrings/msg01845.html
http://www.spinics.net/lists/keyrings/msg01846.html
http://www.spinics.net/lists/keyrings/msg01849.html
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:2669
http://www.securityfocus.com/bid/96943
http://www.spinics.net/lists/keyrings/msg01845.html
http://www.spinics.net/lists/keyrings/msg01846.html
http://www.spinics.net/lists/keyrings/msg01849.html
https://access.redhat.com/errata/RHSA-2017:1842

Get alerted when CVE-2017-6951 or the next vulnerability affects your stack