Null pointer dereference in Linux kernel - CVE-2018-1000200
Published: May 16, 2018 / Updated: May 16, 2018
Vulnerability identifier: #VU12742
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2018-1000200
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to a flaw in the Linux kernel where an out of memory (oom) killing of a process that has large spans of mlocked memory. A local attacker can trigger NULL pointer dereference and cause the system to crash.
Affected software
Linux kernel
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
kernel-alt (Red Hat package)
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
kernel-alt (Red Hat package)
How to mitigate CVE-2018-1000200
Update to version 4.16.9.
kernel-alt (Red Hat package) - update to 4.14.0-115.el7a