Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI: CVE-2018-1120: Security patch for kernel (ALAS-2018-1038)

Back to Search

Amazon Linux AMI: CVE-2018-1120: Security patch for kernel (ALAS-2018-1038)

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:N/A:P)
Published
06/08/2018
Created
07/25/2018
Added
06/12/2018
Modified
03/02/2020

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).

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2018-1038
  • USN-3752-1
  • USN-3752-2
  • USN-3752-3
  • USN-3910-1
  • USN-3910-2
  • CVE-2018-1120
View more

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;