{"schema_version":"1.7.5","id":"CVE-2018-1120","published":"2018-06-20T13:29:00.223Z","modified":"2026-04-16T06:16:04.530518954Z","related":["SUSE-SU-2018:2092-1","SUSE-SU-2019:0148-1","SUSE-SU-2019:0320-1","SUSE-SU-2019:0541-1","SUSE-SU-2019:1287-1"],"details":"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).","affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1120.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.17"}]},{"events":[{"introduced":"0"},{"last_affected":"4.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]}]}}],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/3910-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/3910-2/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/104229"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3096"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3752-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3752-3/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3752-2/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:2948"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201805-14"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3083"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120"},{"type":"EVIDENCE","url":"http://seclists.org/oss-sec/2018/q2/122"},{"type":"EVIDENCE","url":"https://www.exploit-db.com/exploits/44806/"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}