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Allocation of Resources Without Limits or Throttling Affecting perf package, versions <0:3.10.0-693.el7

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-CENTOS7-PERF-2084397
  • published 26 Jul 2021
  • disclosed 13 Jul 2016
Report a new vulnerability Found a mistake?

Introduced: 13 Jul 2016

CVE-2016-6213 Open this link in a new tab
CWE-770 Open this link in a new tab

How to fix?

Upgrade Centos:7 perf to version 0:3.10.0-693.el7 or higher.

NVD Description

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

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.