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).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2018-06-20T13:00:00

Updated: 2024-08-05T03:51:48.863Z

Reserved: 2017-12-04T00:00:00

Link: CVE-2018-1120

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-06-20T13:29:00.223

Modified: 2019-10-09T23:38:08.943

Link: CVE-2018-1120

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-05-17T17:00:00Z

Links: CVE-2018-1120 - Bugzilla