Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2018-18397

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.0%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 2.1
References
Products affected by CVE-2018-18397


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