Rapid7 Vulnerability & Exploit Database

CentOS Linux: CVE-2017-15126: Important: kernel-rt security, bug fix, and enhancement update (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

CentOS Linux: CVE-2017-15126: Important: kernel-rt security, bug fix, and enhancement update (Multiple Advisories)

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
01/14/2018
Created
08/29/2019
Added
08/28/2019
Modified
05/25/2023

Description

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

References

  • 102516
  • CVE-2017-15126
  • RHSA-2018:0676
  • RHSA-2018:1062

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

;