#VU12742 Null pointer dereference in Linux kernel


Published: 2018-05-16 | Updated: 2018-05-16

Vulnerability identifier: #VU12742

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000200

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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.

Mitigation
Update to version 4.16.9.

Vulnerable software versions

Linux kernel: 4.16 - 4.16.8, 4.15 - 4.15.18, 4.14 - 4.14.41, 4.13 - 4.13.16, 4.12 - 4.12.14, 4.11 - 4.11.12, 4.10 - 4.10.17


External links
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.9


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability