A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.0 | 2.8 | Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L |
| Product | Vendor | Version |
|---|---|---|
| kernel | [UNKNOWN] | < a1f46c99d9ea411f9bf30025b912d881d36fc709 |