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Out-of-Bounds Affecting kernel package, versions <0:4.14.47-63.37.amzn2

Severity

 Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.1% (42nd percentile)

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  • Snyk IDSNYK-AMZN2-KERNEL-1662966
  • published27 Sept 2021
  • disclosed20 Jun 2018
Report a new vulnerability Found a mistake?

Introduced: 20 Jun 2018

CVE-2018-1120  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.47-63.37.amzn2 or higher.
This issue was patched in ALAS2-2018-1038.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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).