CVE-2018-1120
lowpriority · track · 33EPSS 0.071 · 94 %ileexploit · PoCEURUUSEPSS · scored 2026-10-27
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).
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.8–5.3
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- EDB-44806Procps-ng - Multiple VulnerabilitiesPoC · exploit_db
affected products (27)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (55)
External citations — patches, advisories, analysis.
- http://seclists.org/oss-sec/2018/q2/122cnnvd
- http://www.securityfocus.com/bid/104229cnnvd
- http://www.ubuntu.com/usn/usn-3910-1cnnvd
- https://access.redhat.com/errata/RHSA-2018:2948cnnvd
- https://access.redhat.com/errata/RHSA-2018:3083cnnvd
- https://access.redhat.com/errata/RHSA-2018:3096cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120cnnvd
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830cnnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan