CVE-2018-1120

Medium

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).

Package Linux Kernel
Published 2018-06-20
Last modified 2024-11-21
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

5.3

out of 10
Medium
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Vector string
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-122

CVE-2018-1120 is classified as CWE-122

See CWE-122 on MITRE CWE for full details on this weakness type.

References

15 total
Showing 5 of 15 references View all on NVD

Frequently asked questions

  • What is CVE-2018-1120?

    CVE-2018-1120 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.3 out of 10 . CVE-2018-1120 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2018-1120?

    CVE-2018-1120 has a CVSS score of 5.3 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2018-1120?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-1120 patch availability.

  • Is CVE-2018-1120 actively exploited?

    No. CVE-2018-1120 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.