VULNERABILITY

CentOS Linux: CVE-2016-6213: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

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CentOS Linux: CVE-2016-6213: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
12/28/2016
Created
08/29/2019
Added
08/28/2019
Modified
05/25/2023

Description

fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.

Solution(s)

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

References

  • 91754
  • CVE-2016-6213
  • RHSA-2017:1842
  • RHSA-2017:2077

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