Design/Logic Flaw

2018-06-2013:29:00

PRIOn knowledge base

www.prio-n.com

5.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.6%

JSON

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).

CPENameOperatorVersion
ubuntu_linuxeq16.04
ubuntu_linuxeq18.04
debian_linuxeq8.0
linux_kernellt4.17
enterprise_linux_desktopeq7.0
enterprise_linux_servereq7.0
enterprise_linux_workstationeq7.0
virtualization_hosteq4.0

Name	Operator	Version
ubuntu_linux	eq	16.04
ubuntu_linux	eq	18.04
debian_linux	eq	8.0
linux_kernel	lt	4.17
enterprise_linux_desktop	eq	7.0
enterprise_linux_server	eq	7.0
enterprise_linux_workstation	eq	7.0
virtualization_host	eq	4.0