CVE-2018-1120

LOW

Linux kernel <4.17 - DoS

Title source: llm
STIX 2.1

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).

Exploits (1)

exploitdb WRITEUP
by Qualys Corporation · textlocallinux
https://www.exploit-db.com/exploits/44806

References (15)

Core 15
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3752-2/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3083
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/104229
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3752-3/
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201805-14
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44806/
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3910-1/
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3910-2/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2948
Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://seclists.org/oss-sec/2018/q2/122
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3752-1/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3096

Scores

CVSS v3 2.8
EPSS 0.0144
EPSS Percentile 80.8%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Details

CWE
CWE-119 CWE-122
Status published
Products (8)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
debian/debian_linux 8.0
linux/linux_kernel < 4.17
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_server 7.0
redhat/enterprise_linux_workstation 7.0
redhat/virtualization_host 4.0
Published Jun 20, 2018
Tracked Since Feb 18, 2026