CVE-2016-2143
HighSummary
The fork implementation in the Linux kernel before version 4.5 on s390 platforms mishandles the case of four page-table levels, allowing local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application.
Risk Assessment
This vulnerability may lead to system crashes, affecting the availability of services within the organization. There is also a risk of unspecified impacts on the system, which could lead to further security issues.
Recommendation
It is recommended to update the Linux kernel to version 4.5 or newer to mitigate this vulnerability. Additionally, monitor systems for suspicious applications that may attempt to exploit this flaw.
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Original NVD description (English source)
The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.

