#VU4042 Improper input validation in Linux kernel - CVE-2016-2143
Published: July 1, 2016 / Updated: April 17, 2018
Vulnerability identifier: #VU4042
Vulnerability risk: Low
CVSSv4.0: 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-2016-2143
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the fork implementation on s390 platforms due to mishandling the case of four page-table levels. A local attacker can exploit arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h and cause the service to crash.
The weakness exists in the fork implementation on s390 platforms due to mishandling the case of four page-table levels. A local attacker can exploit arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h and cause the service to crash.
Remediation
Update to version 4.5.