THREATPORT/VULNERABILITY/CVE-2018-1120
LOW SEVERITY

CVE-2018-1120

Linux Kernel vulnerability

CVSS
2.8
EPSS
7.3%
EPSS pct
94th
Exploited
No known
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 vendor
Linux
Affected product
Linux Kernel
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Weakness type (CWE)
  • CWE-122 — Heap-based Buffer Overflow
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2018-06-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to availability.

Its EPSS score of 7.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2018-1120

  • Confirm whether Linux Linux Kernel is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-1120.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-1120

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