Out-of-Bounds Affecting kernel-rt-debug-kvm package, versions <0:3.10.0-862.rt56.804.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
2.53% (91st percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELRTDEBUGKVM-2099025
  • published26 Jul 2021
  • disclosed5 Dec 2017

Introduced: 5 Dec 2017

CVE-2017-15126  (opens in a new tab)
CWE-119  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Centos:7 kernel-rt-debug-kvm to version 0:3.10.0-862.rt56.804.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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().

CVSS Scores

version 3.1