VULNERABILITY INTELLIGENCE

CVE-2018-1120

CVSS score2.8 LOW
EPSS probability7.20%
CISA KEVNot currently listed
Published2018-06-20
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Description

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).

Weakness classification

  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-122: Heap-based Buffer Overflow

Primary references