NULL pointer dereference in Linux kernel - CVE-2017-6951
Published: April 30, 2018
Vulnerability identifier: #VU12298
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-6951
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the keyring_search_aux function in security/keys/keyring.c due to NULL pointer dereference. A local attacker can cause the service to crash via a request_key system call for the "dead" type.
The weakness exists in the keyring_search_aux function in security/keys/keyring.c due to NULL pointer dereference. A local attacker can cause the service to crash via a request_key system call for the "dead" type.
How to mitigate CVE-2017-6951
Update to version 3.15.